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Finding the Fourth Proportional to 307.29, 423.73 and 196.73

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Solution

The fourth proportional to 307.29, 423.73 and 196.73 is: 271.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.29 : 423.73 = 196.73 : x
  2. Step 2: Convert to fraction form
    307.29/423.73 = 196.73/x
  3. Step 3: Cross multiply
    307.29x = 423.73 × 196.73
  4. Step 4: Simplify right side
    307.29x = 83,360.12
  5. Step 5: Solve for x
    x = 83,360.12/307.29
  6. Step 6: Final answer
    x = 271.27

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