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Finding the Fourth Proportional to 198,058, 273,321.48 and 108,634

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Solution

The fourth proportional to 198,058, 273,321.48 and 108,634 is: 149,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,058 : 273,321.48 = 108,634 : x
  2. Step 2: Convert to fraction form
    198,058/273,321.48 = 108,634/x
  3. Step 3: Cross multiply
    198,058x = 273,321.48 × 108,634
  4. Step 4: Simplify right side
    198,058x = 29,692,005,658.32
  5. Step 5: Solve for x
    x = 29,692,005,658.32/198,058
  6. Step 6: Final answer
    x = 149,915.71

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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.