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Finding the Fourth Proportional to 275,009.88, 412,632.46 and 115,123.18

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Solution

The fourth proportional to 275,009.88, 412,632.46 and 115,123.18 is: 172,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,009.88 : 412,632.46 = 115,123.18 : x
  2. Step 2: Convert to fraction form
    275,009.88/412,632.46 = 115,123.18/x
  3. Step 3: Cross multiply
    275,009.88x = 412,632.46 × 115,123.18
  4. Step 4: Simplify right side
    275,009.88x = 47,503,560,966.42
  5. Step 5: Solve for x
    x = 47,503,560,966.42/275,009.88
  6. Step 6: Final answer
    x = 172,734.02

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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.