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Finding the Fourth Proportional to 263.78, 395.82 and 142.04

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Solution

The fourth proportional to 263.78, 395.82 and 142.04 is: 213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.78 : 395.82 = 142.04 : x
  2. Step 2: Convert to fraction form
    263.78/395.82 = 142.04/x
  3. Step 3: Cross multiply
    263.78x = 395.82 × 142.04
  4. Step 4: Simplify right side
    263.78x = 56,222.27
  5. Step 5: Solve for x
    x = 56,222.27/263.78
  6. Step 6: Final answer
    x = 213.14

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