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Finding the Fourth Proportional to 447.64, 671.30 and 159

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Solution

The fourth proportional to 447.64, 671.30 and 159 is: 238.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.64 : 671.30 = 159 : x
  2. Step 2: Convert to fraction form
    447.64/671.30 = 159/x
  3. Step 3: Cross multiply
    447.64x = 671.30 × 159
  4. Step 4: Simplify right side
    447.64x = 106,736.70
  5. Step 5: Solve for x
    x = 106,736.70/447.64
  6. Step 6: Final answer
    x = 238.44

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