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Finding the Fourth Proportional to 275,008.88, 412,630.96 and 115,122.18

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Solution

The fourth proportional to 275,008.88, 412,630.96 and 115,122.18 is: 172,732.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,008.88 : 412,630.96 = 115,122.18 : x
  2. Step 2: Convert to fraction form
    275,008.88/412,630.96 = 115,122.18/x
  3. Step 3: Cross multiply
    275,008.88x = 412,630.96 × 115,122.18
  4. Step 4: Simplify right side
    275,008.88x = 47,502,975,650.69
  5. Step 5: Solve for x
    x = 47,502,975,650.69/275,008.88
  6. Step 6: Final answer
    x = 172,732.52

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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.