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Finding the Fourth Proportional to 198,791.28, 274,311.49 and 118,203.24

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Solution

The fourth proportional to 198,791.28, 274,311.49 and 118,203.24 is: 163,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,791.28 : 274,311.49 = 118,203.24 : x
  2. Step 2: Convert to fraction form
    198,791.28/274,311.49 = 118,203.24/x
  3. Step 3: Cross multiply
    198,791.28x = 274,311.49 × 118,203.24
  4. Step 4: Simplify right side
    198,791.28x = 32,424,504,924.65
  5. Step 5: Solve for x
    x = 32,424,504,924.65/198,791.28
  6. Step 6: Final answer
    x = 163,108.29

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