SOLUTION: Please can you answer my question. The average of five numbers is 328.8. Four of the numbers are:240,345,238 and 437. Find the fifth number.

Question 1077422: Please can you answer my question. The average of five numbers is 328.8. Four of the numbers are:240,345,238 and 437. Find the fifth number.
Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52803) (Show Source): You can put this solution on YOUR website!
.
The condition IMMEDIATELY lead you to this equation:

= 328.8.

Simplify and solve it for x, which is an unknown 5-th number.

Good luck !!

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

The average of five numbers is .
if four of the numbers are ,, and , fifth number is
The average of five numbers is the sum of all numbers divided by .
so, we have:

->fifth number is

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