Finding the Fourth Proportional to 312,291.48, 468,456.42 and 125,278.68
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Solution
The fourth proportional to 312,291.48, 468,456.42 and 125,278.68 is: 187,925.72
Step by Step Solution
- Step 1: Write the proportion equation
312,291.48 : 468,456.42 = 125,278.68 : x - Step 2: Convert to fraction form
312,291.48/468,456.42 = 125,278.68/x - Step 3: Cross multiply
312,291.48x = 468,456.42 × 125,278.68 - Step 4: Simplify right side
312,291.48x = 58,687,601,935.13 - Step 5: Solve for x
x = 58,687,601,935.13/312,291.48 - Step 6: Final answer
x = 187,925.72
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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.