Question 150405
First divide the 2nd term 150 by the 1st term 100 to get  

{{{150/100=1.5}}} 

 
Now divide the 3rd term 225 by the 2nd term 150 to get  

{{{225/150=1.5}}} 

 
Now divide the 4th term 337.5 by the 3rd term 225 to get  

{{{337.5/225=1.5}}} 

 
Now divide the 5th term 506.25 by the 4th term 337.5 to get  

{{{506.25/337.5=1.5}}} 

 

So if we pick any term and divide it by the previous term, we'll always get 1.5.



So the common ratio is 1.5