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Finding the Fourth Proportional to 451,854.74, 677,782.98 and 136,311.95

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Solution

The fourth proportional to 451,854.74, 677,782.98 and 136,311.95 is: 204,468.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,854.74 : 677,782.98 = 136,311.95 : x
  2. Step 2: Convert to fraction form
    451,854.74/677,782.98 = 136,311.95/x
  3. Step 3: Cross multiply
    451,854.74x = 677,782.98 × 136,311.95
  4. Step 4: Simplify right side
    451,854.74x = 92,389,919,680.61
  5. Step 5: Solve for x
    x = 92,389,919,680.61/451,854.74
  6. Step 6: Final answer
    x = 204,468.19

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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.