Home / 498,895.20-748,269.90-143,872.20

Finding the Fourth Proportional to 498,895.20, 748,269.90 and 143,872.20

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Solution

The fourth proportional to 498,895.20, 748,269.90 and 143,872.20 is: 215,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,895.20 : 748,269.90 = 143,872.20 : x
  2. Step 2: Convert to fraction form
    498,895.20/748,269.90 = 143,872.20/x
  3. Step 3: Cross multiply
    498,895.20x = 748,269.90 × 143,872.20
  4. Step 4: Simplify right side
    498,895.20x = 107,655,236,706.78
  5. Step 5: Solve for x
    x = 107,655,236,706.78/498,895.20
  6. Step 6: Final answer
    x = 215,787.28

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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.