document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1137467>Question 1137467</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi tutors, if anyone has time to help me set up and solve this BMI problem, I would be grateful.  \r<BR>\n" );
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document.write( "The federal government has developed the body mass index​ (BMI) to determine ideal weights. A​ person's BMI is directly proportional to his or her weight in pounds and inversely proportional to the square of his or her height in inches.​ (A BMI of 19 to 25 corresponds to a healthy​ weight.) A​ 6-foot-tall person weighing 177 lb has BMI 24. Find the BMI​ (to the nearest whole​ number) of a person whose weight is 170 lb and whose height is 64 in. </SPAN>\n" );
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document.write( "For me, the easiest way to solve these proportion problems is to look at each factor and see how it changes the end measurement.<br><BR>\n" );
document.write( "In this problem, BMI is directly proportional to body weight.  The reference weight is 177; the new weight is 170.  So the BMI will get multiplied by 170/177.<br><BR>\n" );
document.write( "BMI is also inversely proportional to the square of the height in inches.  The reference height is 72 inches (6 feet); the new height is 64 inches.  So the BMI will get divided by (64/72)^2 = (8/9)^2 = 64/81.<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24%2A%28170%2F177%29%2F%2864%2F81%29+=+29.17 ALIGN=MIDDLE  ALT=\"24%2A%28170%2F177%29%2F%2864%2F81%29+=+29.17\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "The BMI of a person whose weight is 170 pounds and whose height is 64 inches is 29, to the nearest whole number. </SPAN>\n" );
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