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Finding the Fourth Proportional to 481.61, 664.59 and 271.78

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Solution

The fourth proportional to 481.61, 664.59 and 271.78 is: 375.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.61 : 664.59 = 271.78 : x
  2. Step 2: Convert to fraction form
    481.61/664.59 = 271.78/x
  3. Step 3: Cross multiply
    481.61x = 664.59 × 271.78
  4. Step 4: Simplify right side
    481.61x = 180,622.27
  5. Step 5: Solve for x
    x = 180,622.27/481.61
  6. Step 6: Final answer
    x = 375.04

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