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Finding the Fourth Proportional to 203,540.92, 280,850.15 and 122,914.46

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Solution

The fourth proportional to 203,540.92, 280,850.15 and 122,914.46 is: 169,600.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,540.92 : 280,850.15 = 122,914.46 : x
  2. Step 2: Convert to fraction form
    203,540.92/280,850.15 = 122,914.46/x
  3. Step 3: Cross multiply
    203,540.92x = 280,850.15 × 122,914.46
  4. Step 4: Simplify right side
    203,540.92x = 34,520,545,537.58
  5. Step 5: Solve for x
    x = 34,520,545,537.58/203,540.92
  6. Step 6: Final answer
    x = 169,600.03

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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.