Finding the Fourth Proportional to 221,939.96, 332,943.12 and 81,687.92
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Solution
The fourth proportional to 221,939.96, 332,943.12 and 81,687.92 is: 122,544.09
Step by Step Solution
- Step 1: Write the proportion equation
221,939.96 : 332,943.12 = 81,687.92 : x - Step 2: Convert to fraction form
221,939.96/332,943.12 = 81,687.92/x - Step 3: Cross multiply
221,939.96x = 332,943.12 × 81,687.92 - Step 4: Simplify right side
221,939.96x = 27,197,430,951.11 - Step 5: Solve for x
x = 27,197,430,951.11/221,939.96 - Step 6: Final answer
x = 122,544.09
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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.