Finding the Fourth Proportional to 288,589.20, 432,883.80 and 239,437.20
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Solution
The fourth proportional to 288,589.20, 432,883.80 and 239,437.20 is: 359,155.80
Step by Step Solution
- Step 1: Write the proportion equation
288,589.20 : 432,883.80 = 239,437.20 : x - Step 2: Convert to fraction form
288,589.20/432,883.80 = 239,437.20/x - Step 3: Cross multiply
288,589.20x = 432,883.80 × 239,437.20 - Step 4: Simplify right side
288,589.20x = 103,648,484,997.36 - Step 5: Solve for x
x = 103,648,484,997.36/288,589.20 - Step 6: Final answer
x = 359,155.80
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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.