Finding the Fourth Proportional to 147,863.38, 221,882.91 and 54,434.74
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Solution
The fourth proportional to 147,863.38, 221,882.91 and 54,434.74 is: 81,684.45
Step by Step Solution
- Step 1: Write the proportion equation
147,863.38 : 221,882.91 = 54,434.74 : x - Step 2: Convert to fraction form
147,863.38/221,882.91 = 54,434.74/x - Step 3: Cross multiply
147,863.38x = 221,882.91 × 54,434.74 - Step 4: Simplify right side
147,863.38x = 12,078,138,516.29 - Step 5: Solve for x
x = 12,078,138,516.29/147,863.38 - Step 6: Final answer
x = 81,684.45
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1.5x scale
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.