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Finding the Fourth Proportional to 288.11, 397.46 and 194.93

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Solution

The fourth proportional to 288.11, 397.46 and 194.93 is: 268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.11 : 397.46 = 194.93 : x
  2. Step 2: Convert to fraction form
    288.11/397.46 = 194.93/x
  3. Step 3: Cross multiply
    288.11x = 397.46 × 194.93
  4. Step 4: Simplify right side
    288.11x = 77,476.89
  5. Step 5: Solve for x
    x = 77,476.89/288.11
  6. Step 6: Final answer
    x = 268.92

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