Finding the Fourth Proportional to 415.53, 621.93 and 337.62
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Solution
The fourth proportional to 415.53, 621.93 and 337.62 is: 505.32
Step by Step Solution
- Step 1: Write the proportion equation
415.53 : 621.93 = 337.62 : x - Step 2: Convert to fraction form
415.53/621.93 = 337.62/x - Step 3: Cross multiply
415.53x = 621.93 × 337.62 - Step 4: Simplify right side
415.53x = 209,974.21 - Step 5: Solve for x
x = 209,974.21/415.53 - Step 6: Final answer
x = 505.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.