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Finding the Fourth Proportional to 275,026.59, 412,657.52 and 115,139.88

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Solution

The fourth proportional to 275,026.59, 412,657.52 and 115,139.88 is: 172,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,026.59 : 412,657.52 = 115,139.88 : x
  2. Step 2: Convert to fraction form
    275,026.59/412,657.52 = 115,139.88/x
  3. Step 3: Cross multiply
    275,026.59x = 412,657.52 × 115,139.88
  4. Step 4: Simplify right side
    275,026.59x = 47,513,337,333.90
  5. Step 5: Solve for x
    x = 47,513,337,333.90/275,026.59
  6. Step 6: Final answer
    x = 172,759.07

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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.