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Finding the Fourth Proportional to 397.28, 594.96 and 252.80

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Solution

The fourth proportional to 397.28, 594.96 and 252.80 is: 378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.28 : 594.96 = 252.80 : x
  2. Step 2: Convert to fraction form
    397.28/594.96 = 252.80/x
  3. Step 3: Cross multiply
    397.28x = 594.96 × 252.80
  4. Step 4: Simplify right side
    397.28x = 150,405.89
  5. Step 5: Solve for x
    x = 150,405.89/397.28
  6. Step 6: Final answer
    x = 378.59

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