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Finding the Fourth Proportional to 279,687.17, 419,896.62 and 166,042.44

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Solution

The fourth proportional to 279,687.17, 419,896.62 and 166,042.44 is: 249,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,687.17 : 419,896.62 = 166,042.44 : x
  2. Step 2: Convert to fraction form
    279,687.17/419,896.62 = 166,042.44/x
  3. Step 3: Cross multiply
    279,687.17x = 419,896.62 × 166,042.44
  4. Step 4: Simplify right side
    279,687.17x = 69,720,659,332.55
  5. Step 5: Solve for x
    x = 69,720,659,332.55/279,687.17
  6. Step 6: Final answer
    x = 249,280.86

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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.