Home / 198,728.25-274,249.31-109,304.25

Finding the Fourth Proportional to 198,728.25, 274,249.31 and 109,304.25

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Solution

The fourth proportional to 198,728.25, 274,249.31 and 109,304.25 is: 150,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,728.25 : 274,249.31 = 109,304.25 : x
  2. Step 2: Convert to fraction form
    198,728.25/274,249.31 = 109,304.25/x
  3. Step 3: Cross multiply
    198,728.25x = 274,249.31 × 109,304.25
  4. Step 4: Simplify right side
    198,728.25x = 29,976,614,596.05
  5. Step 5: Solve for x
    x = 29,976,614,596.05/198,728.25
  6. Step 6: Final answer
    x = 150,842.24

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1.5x scale

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.