Finding the Fourth Proportional to 542,712.70, 814,107.92 and 143,349.49
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Solution
The fourth proportional to 542,712.70, 814,107.92 and 143,349.49 is: 215,034.50
Step by Step Solution
- Step 1: Write the proportion equation
542,712.70 : 814,107.92 = 143,349.49 : x - Step 2: Convert to fraction form
542,712.70/814,107.92 = 143,349.49/x - Step 3: Cross multiply
542,712.70x = 814,107.92 × 143,349.49 - Step 4: Simplify right side
542,712.70x = 116,701,955,136.96 - Step 5: Solve for x
x = 116,701,955,136.96/542,712.70 - Step 6: Final answer
x = 215,034.50
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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.