Home / 262,677.20-394,138.84-129,484.72

Finding the Fourth Proportional to 262,677.20, 394,138.84 and 129,484.72

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Solution

The fourth proportional to 262,677.20, 394,138.84 and 129,484.72 is: 194,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,677.20 : 394,138.84 = 129,484.72 : x
  2. Step 2: Convert to fraction form
    262,677.20/394,138.84 = 129,484.72/x
  3. Step 3: Cross multiply
    262,677.20x = 394,138.84 × 129,484.72
  4. Step 4: Simplify right side
    262,677.20x = 51,034,957,338.52
  5. Step 5: Solve for x
    x = 51,034,957,338.52/262,677.20
  6. Step 6: Final answer
    x = 194,287.73

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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.