Hello from MrBillDoesMath!
Answer: (4/3) * log(n) = log(m)
Discussion:
Here's what I think you want:
log ( n ^ (4/3) ) = log(m)
As log functions cause exponents to become multipliers, this equation is the same as
(4/3) * log(n) = log(m)
Thank you,
MrB