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Finding the Fourth Proportional to 307.97, 425.07 and 197.54

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Solution

The fourth proportional to 307.97, 425.07 and 197.54 is: 272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.97 : 425.07 = 197.54 : x
  2. Step 2: Convert to fraction form
    307.97/425.07 = 197.54/x
  3. Step 3: Cross multiply
    307.97x = 425.07 × 197.54
  4. Step 4: Simplify right side
    307.97x = 83,966.20
  5. Step 5: Solve for x
    x = 83,966.20/307.97
  6. Step 6: Final answer
    x = 272.65

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