Finding the Fourth Proportional to 352,397.61, 528,591.69 and 86,160.42
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Solution
The fourth proportional to 352,397.61, 528,591.69 and 86,160.42 is: 129,239.47
Step by Step Solution
- Step 1: Write the proportion equation
352,397.61 : 528,591.69 = 86,160.42 : x - Step 2: Convert to fraction form
352,397.61/528,591.69 = 86,160.42/x - Step 3: Cross multiply
352,397.61x = 528,591.69 × 86,160.42 - Step 4: Simplify right side
352,397.61x = 45,543,682,018.91 - Step 5: Solve for x
x = 45,543,682,018.91/352,397.61 - Step 6: Final answer
x = 129,239.47
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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.