Finding the Fourth Proportional to 221,717.64, 332,490.17 and 71,921.70
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Solution
The fourth proportional to 221,717.64, 332,490.17 and 71,921.70 is: 107,854.56
Step by Step Solution
- Step 1: Write the proportion equation
221,717.64 : 332,490.17 = 71,921.70 : x - Step 2: Convert to fraction form
221,717.64/332,490.17 = 71,921.70/x - Step 3: Cross multiply
221,717.64x = 332,490.17 × 71,921.70 - Step 4: Simplify right side
221,717.64x = 23,913,257,900.08 - Step 5: Solve for x
x = 23,913,257,900.08/221,717.64 - Step 6: Final answer
x = 107,854.56
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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.