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Finding the Fourth Proportional to 279,151.80, 418,559.13 and 125,249.70

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Solution

The fourth proportional to 279,151.80, 418,559.13 and 125,249.70 is: 187,798.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,151.80 : 418,559.13 = 125,249.70 : x
  2. Step 2: Convert to fraction form
    279,151.80/418,559.13 = 125,249.70/x
  3. Step 3: Cross multiply
    279,151.80x = 418,559.13 × 125,249.70
  4. Step 4: Simplify right side
    279,151.80x = 52,424,405,464.76
  5. Step 5: Solve for x
    x = 52,424,405,464.76/279,151.80
  6. Step 6: Final answer
    x = 187,798.92

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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.