# Math Help - ratio

1. ## ratio

this is my question:

the ratio of boys to girls is 3:4. 150 boys. how many girls?

how would i work this out?

is this correct? 150 divided 7 which is 21.4, then would i times 21.4 4 times to get the answer?

2. Originally Posted by andyboy179
this is my question:

The ratio of boys to girls is 3:4. 150 boys. How many girls?

How would i work this out?

Is this correct? 150 divided 7 which is 21.4, then would i times 21.4 4 times to get the answer?
3 : 4 => 150 : 200

3. Originally Posted by mr fantastic
3 : 4 => 150 : 200

oh ye, thanks mate