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Finding the Fourth Proportional to 664.93, 997.41 and 254.09

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Solution

The fourth proportional to 664.93, 997.41 and 254.09 is: 381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    664.93 : 997.41 = 254.09 : x
  2. Step 2: Convert to fraction form
    664.93/997.41 = 254.09/x
  3. Step 3: Cross multiply
    664.93x = 997.41 × 254.09
  4. Step 4: Simplify right side
    664.93x = 253,434.64
  5. Step 5: Solve for x
    x = 253,434.64/664.93
  6. Step 6: Final answer
    x = 381.14

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