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Finding the Fourth Proportional to 279,310.73, 419,173.96 and 137,232.27

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Solution

The fourth proportional to 279,310.73, 419,173.96 and 137,232.27 is: 205,950.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,310.73 : 419,173.96 = 137,232.27 : x
  2. Step 2: Convert to fraction form
    279,310.73/419,173.96 = 137,232.27/x
  3. Step 3: Cross multiply
    279,310.73x = 419,173.96 × 137,232.27
  4. Step 4: Simplify right side
    279,310.73x = 57,524,194,760.54
  5. Step 5: Solve for x
    x = 57,524,194,760.54/279,310.73
  6. Step 6: Final answer
    x = 205,950.54

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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.