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Finding the Fourth Proportional to 198,357.27, 273,732.03 and 107,712.42

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Solution

The fourth proportional to 198,357.27, 273,732.03 and 107,712.42 is: 148,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,357.27 : 273,732.03 = 107,712.42 : x
  2. Step 2: Convert to fraction form
    198,357.27/273,732.03 = 107,712.42/x
  3. Step 3: Cross multiply
    198,357.27x = 273,732.03 × 107,712.42
  4. Step 4: Simplify right side
    198,357.27x = 29,484,339,382.81
  5. Step 5: Solve for x
    x = 29,484,339,382.81/198,357.27
  6. Step 6: Final answer
    x = 148,642.60

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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.