Finding the Fourth Proportional to 517,105.97, 775,658.99 and 162,148.58
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Solution
The fourth proportional to 517,105.97, 775,658.99 and 162,148.58 is: 243,222.88
Step by Step Solution
- Step 1: Write the proportion equation
517,105.97 : 775,658.99 = 162,148.58 : x - Step 2: Convert to fraction form
517,105.97/775,658.99 = 162,148.58/x - Step 3: Cross multiply
517,105.97x = 775,658.99 × 162,148.58 - Step 4: Simplify right side
517,105.97x = 125,772,006,679.53 - Step 5: Solve for x
x = 125,772,006,679.53/517,105.97 - Step 6: Final answer
x = 243,222.88
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.