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Finding the Fourth Proportional to 279,422.59, 419,163.88 and 119,515.13

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Solution

The fourth proportional to 279,422.59, 419,163.88 and 119,515.13 is: 179,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,422.59 : 419,163.88 = 119,515.13 : x
  2. Step 2: Convert to fraction form
    279,422.59/419,163.88 = 119,515.13/x
  3. Step 3: Cross multiply
    279,422.59x = 419,163.88 × 119,515.13
  4. Step 4: Simplify right side
    279,422.59x = 50,096,424,487.97
  5. Step 5: Solve for x
    x = 50,096,424,487.97/279,422.59
  6. Step 6: Final answer
    x = 179,285.52

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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.