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Finding the Fourth Proportional to 495.23, 743.02 and 221.30

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Solution

The fourth proportional to 495.23, 743.02 and 221.30 is: 332.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.23 : 743.02 = 221.30 : x
  2. Step 2: Convert to fraction form
    495.23/743.02 = 221.30/x
  3. Step 3: Cross multiply
    495.23x = 743.02 × 221.30
  4. Step 4: Simplify right side
    495.23x = 164,430.33
  5. Step 5: Solve for x
    x = 164,430.33/495.23
  6. Step 6: Final answer
    x = 332.03

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