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Finding the Fourth Proportional to 454,070.70, 681,138.45 and 138,527.10

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Solution

The fourth proportional to 454,070.70, 681,138.45 and 138,527.10 is: 207,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,070.70 : 681,138.45 = 138,527.10 : x
  2. Step 2: Convert to fraction form
    454,070.70/681,138.45 = 138,527.10/x
  3. Step 3: Cross multiply
    454,070.70x = 681,138.45 × 138,527.10
  4. Step 4: Simplify right side
    454,070.70x = 94,356,134,177.00
  5. Step 5: Solve for x
    x = 94,356,134,177.00/454,070.70
  6. Step 6: Final answer
    x = 207,800.53

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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.