Finding the Fourth Proportional to 386,047.97, 579,163.67 and 133,330.55
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Solution
The fourth proportional to 386,047.97, 579,163.67 and 133,330.55 is: 200,027.49
Step by Step Solution
- Step 1: Write the proportion equation
386,047.97 : 579,163.67 = 133,330.55 : x - Step 2: Convert to fraction form
386,047.97/579,163.67 = 133,330.55/x - Step 3: Cross multiply
386,047.97x = 579,163.67 × 133,330.55 - Step 4: Simplify right side
386,047.97x = 77,220,207,098.65 - Step 5: Solve for x
x = 77,220,207,098.65/386,047.97 - Step 6: Final answer
x = 200,027.49
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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.