Finding the Fourth Proportional to 398,788.53, 550,312.97 and 219,940.53
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Solution
The fourth proportional to 398,788.53, 550,312.97 and 219,940.53 is: 303,509.54
Step by Step Solution
- Step 1: Write the proportion equation
398,788.53 : 550,312.97 = 219,940.53 : x - Step 2: Convert to fraction form
398,788.53/550,312.97 = 219,940.53/x - Step 3: Cross multiply
398,788.53x = 550,312.97 × 219,940.53 - Step 4: Simplify right side
398,788.53x = 121,036,125,187.97 - Step 5: Solve for x
x = 121,036,125,187.97/398,788.53 - Step 6: Final answer
x = 303,509.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.