Finding the Fourth Proportional to 381,359.76, 572,043.69 and 115,122.48
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Solution
The fourth proportional to 381,359.76, 572,043.69 and 115,122.48 is: 172,684.94
Step by Step Solution
- Step 1: Write the proportion equation
381,359.76 : 572,043.69 = 115,122.48 : x - Step 2: Convert to fraction form
381,359.76/572,043.69 = 115,122.48/x - Step 3: Cross multiply
381,359.76x = 572,043.69 × 115,122.48 - Step 4: Simplify right side
381,359.76x = 65,855,088,261.15 - Step 5: Solve for x
x = 65,855,088,261.15/381,359.76 - Step 6: Final answer
x = 172,684.94
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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.