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Finding the Fourth Proportional to 279.26, 418.92 and 134.88

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Solution

The fourth proportional to 279.26, 418.92 and 134.88 is: 202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.26 : 418.92 = 134.88 : x
  2. Step 2: Convert to fraction form
    279.26/418.92 = 134.88/x
  3. Step 3: Cross multiply
    279.26x = 418.92 × 134.88
  4. Step 4: Simplify right side
    279.26x = 56,503.93
  5. Step 5: Solve for x
    x = 56,503.93/279.26
  6. Step 6: Final answer
    x = 202.33

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