Finding the Fourth Proportional to 221,604.30, 332,318.97 and 81,286.38
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Solution
The fourth proportional to 221,604.30, 332,318.97 and 81,286.38 is: 121,897.48
Step by Step Solution
- Step 1: Write the proportion equation
221,604.30 : 332,318.97 = 81,286.38 : x - Step 2: Convert to fraction form
221,604.30/332,318.97 = 81,286.38/x - Step 3: Cross multiply
221,604.30x = 332,318.97 × 81,286.38 - Step 4: Simplify right side
221,604.30x = 27,013,006,076.63 - Step 5: Solve for x
x = 27,013,006,076.63/221,604.30 - Step 6: Final answer
x = 121,897.48
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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.