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Finding the Fourth Proportional to 499,406.98, 749,132.32 and 144,456.88

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Solution

The fourth proportional to 499,406.98, 749,132.32 and 144,456.88 is: 216,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,406.98 : 749,132.32 = 144,456.88 : x
  2. Step 2: Convert to fraction form
    499,406.98/749,132.32 = 144,456.88/x
  3. Step 3: Cross multiply
    499,406.98x = 749,132.32 × 144,456.88
  4. Step 4: Simplify right side
    499,406.98x = 108,217,317,654.36
  5. Step 5: Solve for x
    x = 108,217,317,654.36/499,406.98
  6. Step 6: Final answer
    x = 216,691.64

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1.5x scale

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.