Finding the Fourth Proportional to 415.13, 621.59 and 349.97
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Solution
The fourth proportional to 415.13, 621.59 and 349.97 is: 524.02
Step by Step Solution
- Step 1: Write the proportion equation
415.13 : 621.59 = 349.97 : x - Step 2: Convert to fraction form
415.13/621.59 = 349.97/x - Step 3: Cross multiply
415.13x = 621.59 × 349.97 - Step 4: Simplify right side
415.13x = 217,532.99 - Step 5: Solve for x
x = 217,532.99/415.13 - Step 6: Final answer
x = 524.02
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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.