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Finding the Fourth Proportional to 481.00, 663.77 and 284.56

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Solution

The fourth proportional to 481.00, 663.77 and 284.56 is: 392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.00 : 663.77 = 284.56 : x
  2. Step 2: Convert to fraction form
    481.00/663.77 = 284.56/x
  3. Step 3: Cross multiply
    481.00x = 663.77 × 284.56
  4. Step 4: Simplify right side
    481.00x = 188,877.65
  5. Step 5: Solve for x
    x = 188,877.65/481.00
  6. Step 6: Final answer
    x = 392.68

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