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Finding the Fourth Proportional to 481.24, 663.42 and 343

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Solution

The fourth proportional to 481.24, 663.42 and 343 is: 472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.24 : 663.42 = 343 : x
  2. Step 2: Convert to fraction form
    481.24/663.42 = 343/x
  3. Step 3: Cross multiply
    481.24x = 663.42 × 343
  4. Step 4: Simplify right side
    481.24x = 227,553.06
  5. Step 5: Solve for x
    x = 227,553.06/481.24
  6. Step 6: Final answer
    x = 472.85

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