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Finding the Fourth Proportional to 408.73, 613.18 and 134.84

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Solution

The fourth proportional to 408.73, 613.18 and 134.84 is: 202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    408.73 : 613.18 = 134.84 : x
  2. Step 2: Convert to fraction form
    408.73/613.18 = 134.84/x
  3. Step 3: Cross multiply
    408.73x = 613.18 × 134.84
  4. Step 4: Simplify right side
    408.73x = 82,677.45
  5. Step 5: Solve for x
    x = 82,677.45/408.73
  6. Step 6: Final answer
    x = 202.28

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