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Finding the Fourth Proportional to 216.54, 324.41 and 118.93

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Solution

The fourth proportional to 216.54, 324.41 and 118.93 is: 178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.54 : 324.41 = 118.93 : x
  2. Step 2: Convert to fraction form
    216.54/324.41 = 118.93/x
  3. Step 3: Cross multiply
    216.54x = 324.41 × 118.93
  4. Step 4: Simplify right side
    216.54x = 38,582.38
  5. Step 5: Solve for x
    x = 38,582.38/216.54
  6. Step 6: Final answer
    x = 178.18

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