Finding the Fourth Proportional to 215,719.47, 297,693.88 and 125,129.07
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Solution
The fourth proportional to 215,719.47, 297,693.88 and 125,129.07 is: 172,678.70
Step by Step Solution
- Step 1: Write the proportion equation
215,719.47 : 297,693.88 = 125,129.07 : x - Step 2: Convert to fraction form
215,719.47/297,693.88 = 125,129.07/x - Step 3: Cross multiply
215,719.47x = 297,693.88 × 125,129.07 - Step 4: Simplify right side
215,719.47x = 37,250,158,036.27 - Step 5: Solve for x
x = 37,250,158,036.27/215,719.47 - Step 6: Final answer
x = 172,678.70
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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.