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Finding the Fourth Proportional to 454,528.76, 681,727.52 and 138,900.92

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Solution

The fourth proportional to 454,528.76, 681,727.52 and 138,900.92 is: 208,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,528.76 : 681,727.52 = 138,900.92 : x
  2. Step 2: Convert to fraction form
    454,528.76/681,727.52 = 138,900.92/x
  3. Step 3: Cross multiply
    454,528.76x = 681,727.52 × 138,900.92
  4. Step 4: Simplify right side
    454,528.76x = 94,692,575,614.18
  5. Step 5: Solve for x
    x = 94,692,575,614.18/454,528.76
  6. Step 6: Final answer
    x = 208,331.32

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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.