Finding the Fourth Proportional to 386,546.13, 533,491.97 and 235,730.61
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Solution
The fourth proportional to 386,546.13, 533,491.97 and 235,730.61 is: 325,343.80
Step by Step Solution
- Step 1: Write the proportion equation
386,546.13 : 533,491.97 = 235,730.61 : x - Step 2: Convert to fraction form
386,546.13/533,491.97 = 235,730.61/x - Step 3: Cross multiply
386,546.13x = 533,491.97 × 235,730.61 - Step 4: Simplify right side
386,546.13x = 125,760,387,518.20 - Step 5: Solve for x
x = 125,760,387,518.20/386,546.13 - Step 6: Final answer
x = 325,343.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.