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Finding the Fourth Proportional to 499,585.40, 749,378.10 and 144,635.30

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Solution

The fourth proportional to 499,585.40, 749,378.10 and 144,635.30 is: 216,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,585.40 : 749,378.10 = 144,635.30 : x
  2. Step 2: Convert to fraction form
    499,585.40/749,378.10 = 144,635.30/x
  3. Step 3: Cross multiply
    499,585.40x = 749,378.10 × 144,635.30
  4. Step 4: Simplify right side
    499,585.40x = 108,386,526,306.93
  5. Step 5: Solve for x
    x = 108,386,526,306.93/499,585.40
  6. Step 6: Final answer
    x = 216,952.95

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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.