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Finding the Fourth Proportional to 279,437.22, 419,027.22 and 89,862.48

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Solution

The fourth proportional to 279,437.22, 419,027.22 and 89,862.48 is: 134,752.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,437.22 : 419,027.22 = 89,862.48 : x
  2. Step 2: Convert to fraction form
    279,437.22/419,027.22 = 89,862.48/x
  3. Step 3: Cross multiply
    279,437.22x = 419,027.22 × 89,862.48
  4. Step 4: Simplify right side
    279,437.22x = 37,654,825,176.71
  5. Step 5: Solve for x
    x = 37,654,825,176.71/279,437.22
  6. Step 6: Final answer
    x = 134,752.36

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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.