Question 372346
<br><font face="Tahoma">We will set up a proportion using the 4 to 5 ratio. <br>

Let x be the unknown # of boys, then 375-x will be the # of girls:<br>

{{{4/5=x/(375-x)}}}<br>

{{{5x=4*(375-x)}}}<br>

{{{5x=1500-4x}}}<br>

{{{9x=1500}}}<br>

{{{x=500/3}}}<br>

Unfortunately, this problem as written does not have a real solution without the use of rounding.<br>

500/3 would round to 167 boys, which would mean there are 208 girls.<br>

However, 167 boys to 208 girls would not be an EXACT 4 to 5 ratio.<br>

This would be my best guesstimate answer with the specifications given in the problem as written.<br>

In order for the answer to come out correctly, the total number of students would need to be divisible by 9.<br>

If there were actually 378 students, a true 4 to 5 ratio would be found by having 168 boys and 210 girls.<br>

I hope this helps a little bit!<br>