Home / 275,764.23-380,540.03-154,910.61

Finding the Fourth Proportional to 275,764.23, 380,540.03 and 154,910.61

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Solution

The fourth proportional to 275,764.23, 380,540.03 and 154,910.61 is: 213,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,764.23 : 380,540.03 = 154,910.61 : x
  2. Step 2: Convert to fraction form
    275,764.23/380,540.03 = 154,910.61/x
  3. Step 3: Cross multiply
    275,764.23x = 380,540.03 × 154,910.61
  4. Step 4: Simplify right side
    275,764.23x = 58,949,687,402.17
  5. Step 5: Solve for x
    x = 58,949,687,402.17/275,764.23
  6. Step 6: Final answer
    x = 213,768.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.