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Finding the Fourth Proportional to 243.81, 365.11 and 135.68

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Solution

The fourth proportional to 243.81, 365.11 and 135.68 is: 203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.81 : 365.11 = 135.68 : x
  2. Step 2: Convert to fraction form
    243.81/365.11 = 135.68/x
  3. Step 3: Cross multiply
    243.81x = 365.11 × 135.68
  4. Step 4: Simplify right side
    243.81x = 49,535.96
  5. Step 5: Solve for x
    x = 49,535.96/243.81
  6. Step 6: Final answer
    x = 203.17

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