Do u know what a rotio table or a in and out box if u do that how i have to solve it and i need to know the rule

Okay so an in and out box is a box is basically a tale. Do you have a rule ? so if you have a rule..(which i do not know) lets say the rule is +2. lets also say that the IN says 4. Then what would be the out ? The out would be whatever 4+2 is. So basically the "out" is the outcome. 

1/8 1/16 1/32 should be the next numbers because they are dividing by two