Ratio: שינוי היחס

The problem requires us to find out how many flowers need to be added to meet a specific ratio of flower pots to total pots.

Let's denote the additional number of flowers needed as $x$. The current number of flower pots is 40, and we need to make the ratio of flower pots to total pots $1:4$.

We can establish the equation based on the desired ratio:

$\frac{40 + x}{380} = \frac{1}{4}$

To solve for $x$, cross-multiply the terms:

$4(40 + x) = 380$

Simplify and calculate:

$160 + 4x = 380$

Subtract 160 from both sides:

$4x = 220$

Now divide both sides by 4:

$x = 55$

Therefore, 55 additional flowers need to be added to achieve the desired ratio.

Comparing this result with the given answer choices, we find that the correct answer is choice 4: $55$.