Finding the Fourth Proportional to 261,387.73, 392,132.65 and 83,881.09
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Solution
The fourth proportional to 261,387.73, 392,132.65 and 83,881.09 is: 125,838.02
Step by Step Solution
- Step 1: Write the proportion equation
261,387.73 : 392,132.65 = 83,881.09 : x - Step 2: Convert to fraction form
261,387.73/392,132.65 = 83,881.09/x - Step 3: Cross multiply
261,387.73x = 392,132.65 × 83,881.09 - Step 4: Simplify right side
261,387.73x = 32,892,514,106.59 - Step 5: Solve for x
x = 32,892,514,106.59/261,387.73 - Step 6: Final answer
x = 125,838.02
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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.