You Do Need power plug adapter while traveling from North Macedonia to Puerto Rico.

Here is Why You Need An Adapter

The outlet and plug type used in Puerto Rico are A and B and in North Macedonia are C and F. This is how they look like.

North Macedonia

In North Macedonia, outlets of type C and F are in use.

Type C

Type F

Puerto Rico

In Puerto Rico, outlets of type A and B are in use.

Type A

Type B