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Finding the Fourth Proportional to 198,538, 273,982.44 and 109,114

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Solution

The fourth proportional to 198,538, 273,982.44 and 109,114 is: 150,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,538 : 273,982.44 = 109,114 : x
  2. Step 2: Convert to fraction form
    198,538/273,982.44 = 109,114/x
  3. Step 3: Cross multiply
    198,538x = 273,982.44 × 109,114
  4. Step 4: Simplify right side
    198,538x = 29,895,319,958.16
  5. Step 5: Solve for x
    x = 29,895,319,958.16/198,538
  6. Step 6: Final answer
    x = 150,577.32

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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.