Finding the Fourth Proportional to 509,009.26, 763,387.72 and 172,042.42
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Solution
The fourth proportional to 509,009.26, 763,387.72 and 172,042.42 is: 258,020.99
Step by Step Solution
- Step 1: Write the proportion equation
509,009.26 : 763,387.72 = 172,042.42 : x - Step 2: Convert to fraction form
509,009.26/763,387.72 = 172,042.42/x - Step 3: Cross multiply
509,009.26x = 763,387.72 × 172,042.42 - Step 4: Simplify right side
509,009.26x = 131,335,070,747.08 - Step 5: Solve for x
x = 131,335,070,747.08/509,009.26 - Step 6: Final answer
x = 258,020.99
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1.5x scale
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.