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Finding the Fourth Proportional to 240,478.80, 360,847.80 and 100,251.60

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Solution

The fourth proportional to 240,478.80, 360,847.80 and 100,251.60 is: 150,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,478.80 : 360,847.80 = 100,251.60 : x
  2. Step 2: Convert to fraction form
    240,478.80/360,847.80 = 100,251.60/x
  3. Step 3: Cross multiply
    240,478.80x = 360,847.80 × 100,251.60
  4. Step 4: Simplify right side
    240,478.80x = 36,175,569,306.48
  5. Step 5: Solve for x
    x = 36,175,569,306.48/240,478.80
  6. Step 6: Final answer
    x = 150,431.43

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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.