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Finding the Fourth Proportional to 499,487.10, 749,230.65 and 144,512.70

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Solution

The fourth proportional to 499,487.10, 749,230.65 and 144,512.70 is: 216,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,487.10 : 749,230.65 = 144,512.70 : x
  2. Step 2: Convert to fraction form
    499,487.10/749,230.65 = 144,512.70/x
  3. Step 3: Cross multiply
    499,487.10x = 749,230.65 × 144,512.70
  4. Step 4: Simplify right side
    499,487.10x = 108,273,344,154.26
  5. Step 5: Solve for x
    x = 108,273,344,154.26/499,487.10
  6. Step 6: Final answer
    x = 216,769.05

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Similar ratio
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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.