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Finding the Fourth Proportional to 198.04, 296.92 and 82.40

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Solution

The fourth proportional to 198.04, 296.92 and 82.40 is: 123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.04 : 296.92 = 82.40 : x
  2. Step 2: Convert to fraction form
    198.04/296.92 = 82.40/x
  3. Step 3: Cross multiply
    198.04x = 296.92 × 82.40
  4. Step 4: Simplify right side
    198.04x = 24,466.21
  5. Step 5: Solve for x
    x = 24,466.21/198.04
  6. Step 6: Final answer
    x = 123.54

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