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Finding the Fourth Proportional to 203,892, 281,393.01 and 123,363.92

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Solution

The fourth proportional to 203,892, 281,393.01 and 123,363.92 is: 170,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,892 : 281,393.01 = 123,363.92 : x
  2. Step 2: Convert to fraction form
    203,892/281,393.01 = 123,363.92/x
  3. Step 3: Cross multiply
    203,892x = 281,393.01 × 123,363.92
  4. Step 4: Simplify right side
    203,892x = 34,713,744,774.20
  5. Step 5: Solve for x
    x = 34,713,744,774.20/203,892
  6. Step 6: Final answer
    x = 170,255.55

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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.