Well, for ratio problems like this, here’s what you do:
1. Add the numbers in the ratio together:
3 + 4 = 7
2. Divide that number by the quantity given:
238 / 7 =
34
3. Multiply each part of the ratio by the quotient:
4 x 34 = 136
3 x 34 = 102
102 + 136 = 238
4. Answer the problem using the information you just found:
The ratio of girls to boys in the junior class is 102 : 136.
