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Finding the Fourth Proportional to 453.27, 625.45 and 256.75

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Solution

The fourth proportional to 453.27, 625.45 and 256.75 is: 354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.27 : 625.45 = 256.75 : x
  2. Step 2: Convert to fraction form
    453.27/625.45 = 256.75/x
  3. Step 3: Cross multiply
    453.27x = 625.45 × 256.75
  4. Step 4: Simplify right side
    453.27x = 160,584.29
  5. Step 5: Solve for x
    x = 160,584.29/453.27
  6. Step 6: Final answer
    x = 354.28

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