In tomatoes, the round shape of the fruit dominates over the pear-shaped one. Determine the genotypes

In tomatoes, the round shape of the fruit dominates over the pear-shaped one. Determine the genotypes of the parental forms, if the offspring have 50% of plants with round and 50% with pear-shaped fruits. Tomatoes of 118 plants with pear-shaped and 363 plants with round fruits were grown from hybrid seeds. How many are F1 heterozygotes among all F1 plants?

Let be:
A-round shape
a-pear-shaped
Mendel’s first law
Crossing equations
R: Aa x aa
F1: Aa, Aa, aa, aa

P: Aa x Aa
F2: AA, Aa, Aa, aa
We get 3/4 of the fruit, which is (363) with a round fruit shape and 1/4 (118) with a pear shape.
That is, the proportion of heterozygotes was approximately 242 round-shaped fetuses.