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Finding the Fourth Proportional to 214.78, 322.02 and 92.96

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Solution

The fourth proportional to 214.78, 322.02 and 92.96 is: 139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.78 : 322.02 = 92.96 : x
  2. Step 2: Convert to fraction form
    214.78/322.02 = 92.96/x
  3. Step 3: Cross multiply
    214.78x = 322.02 × 92.96
  4. Step 4: Simplify right side
    214.78x = 29,934.98
  5. Step 5: Solve for x
    x = 29,934.98/214.78
  6. Step 6: Final answer
    x = 139.38

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