Finding the Fourth Proportional to 397,170.61, 548,096.09 and 215,882.08
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Solution
The fourth proportional to 397,170.61, 548,096.09 and 215,882.08 is: 297,917.62
Step by Step Solution
- Step 1: Write the proportion equation
397,170.61 : 548,096.09 = 215,882.08 : x - Step 2: Convert to fraction form
397,170.61/548,096.09 = 215,882.08/x - Step 3: Cross multiply
397,170.61x = 548,096.09 × 215,882.08 - Step 4: Simplify right side
397,170.61x = 118,324,121,499.42 - Step 5: Solve for x
x = 118,324,121,499.42/397,170.61 - Step 6: Final answer
x = 297,917.62
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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.