Finding the Fourth Proportional to 396,449.97, 547,105.05 and 215,163.46
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Solution
The fourth proportional to 396,449.97, 547,105.05 and 215,163.46 is: 296,927.80
Step by Step Solution
- Step 1: Write the proportion equation
396,449.97 : 547,105.05 = 215,163.46 : x - Step 2: Convert to fraction form
396,449.97/547,105.05 = 215,163.46/x - Step 3: Cross multiply
396,449.97x = 547,105.05 × 215,163.46 - Step 4: Simplify right side
396,449.97x = 117,717,016,856.37 - Step 5: Solve for x
x = 117,717,016,856.37/396,449.97 - Step 6: Final answer
x = 296,927.80
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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.