# Question #edb0e

##### 2 Answers

Jun 21, 2017

351

#### Explanation:

**To answer this question, the sum of 3 numbers needs to be subtracted from the sum of all 4 numbers. You can find the sum of 3 numbers by multiplying the given average by 3.**

**Now you can subtract this total from the total of all four numbers.**

**The fourth number is 351!**

Jun 21, 2017

351

#### Explanation:

To find the sum of the three numbers that average to 293, multiply 293 by 3.

You multiply by 3 because when you originally find the average of 3 numbers, you divide the sum of the numbers by 3.

*average = sum of numbers / # of numbers*

If you subtract 879 from the sum of all 4 numbers (1230), then you know the fourth number.

The fourth number is 351.