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Finding the Fourth Proportional to 348.62, 522.72 and 131.96

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Solution

The fourth proportional to 348.62, 522.72 and 131.96 is: 197.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.62 : 522.72 = 131.96 : x
  2. Step 2: Convert to fraction form
    348.62/522.72 = 131.96/x
  3. Step 3: Cross multiply
    348.62x = 522.72 × 131.96
  4. Step 4: Simplify right side
    348.62x = 68,978.13
  5. Step 5: Solve for x
    x = 68,978.13/348.62
  6. Step 6: Final answer
    x = 197.86

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