Finding the Fourth Proportional to 288,023.20, 431,905.20 and 110,471.20
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Solution
The fourth proportional to 288,023.20, 431,905.20 and 110,471.20 is: 165,657.09
Step by Step Solution
- Step 1: Write the proportion equation
288,023.20 : 431,905.20 = 110,471.20 : x - Step 2: Convert to fraction form
288,023.20/431,905.20 = 110,471.20/x - Step 3: Cross multiply
288,023.20x = 431,905.20 × 110,471.20 - Step 4: Simplify right side
288,023.20x = 47,713,085,730.24 - Step 5: Solve for x
x = 47,713,085,730.24/288,023.20 - Step 6: Final answer
x = 165,657.09
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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.