Finding the Fourth Proportional to 387,553.65, 534,853.98 and 232,510.74
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Solution
The fourth proportional to 387,553.65, 534,853.98 and 232,510.74 is: 320,882.79
Step by Step Solution
- Step 1: Write the proportion equation
387,553.65 : 534,853.98 = 232,510.74 : x - Step 2: Convert to fraction form
387,553.65/534,853.98 = 232,510.74/x - Step 3: Cross multiply
387,553.65x = 534,853.98 × 232,510.74 - Step 4: Simplify right side
387,553.65x = 124,359,294,681.75 - Step 5: Solve for x
x = 124,359,294,681.75/387,553.65 - Step 6: Final answer
x = 320,882.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.