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Finding the Fourth Proportional to 495.27, 743.00 and 279.09

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Solution

The fourth proportional to 495.27, 743.00 and 279.09 is: 418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.27 : 743.00 = 279.09 : x
  2. Step 2: Convert to fraction form
    495.27/743.00 = 279.09/x
  3. Step 3: Cross multiply
    495.27x = 743.00 × 279.09
  4. Step 4: Simplify right side
    495.27x = 207,362.47
  5. Step 5: Solve for x
    x = 207,362.47/495.27
  6. Step 6: Final answer
    x = 418.69

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