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Finding the Fourth Proportional to 279,829.59, 419,744.36 and 69,467.52

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Solution

The fourth proportional to 279,829.59, 419,744.36 and 69,467.52 is: 104,201.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,829.59 : 419,744.36 = 69,467.52 : x
  2. Step 2: Convert to fraction form
    279,829.59/419,744.36 = 69,467.52/x
  3. Step 3: Cross multiply
    279,829.59x = 419,744.36 × 69,467.52
  4. Step 4: Simplify right side
    279,829.59x = 29,158,601,470.90
  5. Step 5: Solve for x
    x = 29,158,601,470.90/279,829.59
  6. Step 6: Final answer
    x = 104,201.28

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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.