Answer:
330 mg
Step-by-step explanation:
We can represent the proportional relationship between the potassium content of a serving of fruit cocktail and its volume with a ratio:
volume (cups) : potassium (mg)
1/2 : 55
To find out how many milligrams of potassium are in 3 cups of cocktail, we can multiply both sides of the ratio by:
- 3 ÷ (1/2), which simplifies to 3 × 2 = 6
Now, looking at the right side of the ratio:
volume : potassium
6 × (1/2) : (55) × 6
3 : 330
We can see that there are 330 mg of potassium in 3 cups of fruit cocktail.
