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Finding the Fourth Proportional to 424.62, 637.02 and 136.26

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Solution

The fourth proportional to 424.62, 637.02 and 136.26 is: 204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.62 : 637.02 = 136.26 : x
  2. Step 2: Convert to fraction form
    424.62/637.02 = 136.26/x
  3. Step 3: Cross multiply
    424.62x = 637.02 × 136.26
  4. Step 4: Simplify right side
    424.62x = 86,800.35
  5. Step 5: Solve for x
    x = 86,800.35/424.62
  6. Step 6: Final answer
    x = 204.42

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