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Finding the Fourth Proportional to 322.13, 445.01 and 211.97

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Solution

The fourth proportional to 322.13, 445.01 and 211.97 is: 292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.13 : 445.01 = 211.97 : x
  2. Step 2: Convert to fraction form
    322.13/445.01 = 211.97/x
  3. Step 3: Cross multiply
    322.13x = 445.01 × 211.97
  4. Step 4: Simplify right side
    322.13x = 94,325.48
  5. Step 5: Solve for x
    x = 94,325.48/322.13
  6. Step 6: Final answer
    x = 292.82

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