Finding the Fourth Proportional to 414.68, 572.21 and 239.99
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Solution
The fourth proportional to 414.68, 572.21 and 239.99 is: 331.15
Step by Step Solution
- Step 1: Write the proportion equation
414.68 : 572.21 = 239.99 : x - Step 2: Convert to fraction form
414.68/572.21 = 239.99/x - Step 3: Cross multiply
414.68x = 572.21 × 239.99 - Step 4: Simplify right side
414.68x = 137,320.62 - Step 5: Solve for x
x = 137,320.62/414.68 - Step 6: Final answer
x = 331.15
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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.