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Finding the Fourth Proportional to 451,658.28, 677,487.72 and 114,724.20

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Solution

The fourth proportional to 451,658.28, 677,487.72 and 114,724.20 is: 172,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,658.28 : 677,487.72 = 114,724.20 : x
  2. Step 2: Convert to fraction form
    451,658.28/677,487.72 = 114,724.20/x
  3. Step 3: Cross multiply
    451,658.28x = 677,487.72 × 114,724.20
  4. Step 4: Simplify right side
    451,658.28x = 77,724,236,686.82
  5. Step 5: Solve for x
    x = 77,724,236,686.82/451,658.28
  6. Step 6: Final answer
    x = 172,086.38

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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.