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Finding the Fourth Proportional to 307.16, 423.97 and 196.93

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Solution

The fourth proportional to 307.16, 423.97 and 196.93 is: 271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.16 : 423.97 = 196.93 : x
  2. Step 2: Convert to fraction form
    307.16/423.97 = 196.93/x
  3. Step 3: Cross multiply
    307.16x = 423.97 × 196.93
  4. Step 4: Simplify right side
    307.16x = 83,492.41
  5. Step 5: Solve for x
    x = 83,492.41/307.16
  6. Step 6: Final answer
    x = 271.82

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