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Finding the Fourth Proportional to 279,282.87, 418,861.22 and 79,598.97

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Solution

The fourth proportional to 279,282.87, 418,861.22 and 79,598.97 is: 119,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,282.87 : 418,861.22 = 79,598.97 : x
  2. Step 2: Convert to fraction form
    279,282.87/418,861.22 = 79,598.97/x
  3. Step 3: Cross multiply
    279,282.87x = 418,861.22 × 79,598.97
  4. Step 4: Simplify right side
    279,282.87x = 33,340,921,286.95
  5. Step 5: Solve for x
    x = 33,340,921,286.95/279,282.87
  6. Step 6: Final answer
    x = 119,380.47

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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.