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Finding the Fourth Proportional to 286.06, 429.09 and 131.94

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Solution

The fourth proportional to 286.06, 429.09 and 131.94 is: 197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.06 : 429.09 = 131.94 : x
  2. Step 2: Convert to fraction form
    286.06/429.09 = 131.94/x
  3. Step 3: Cross multiply
    286.06x = 429.09 × 131.94
  4. Step 4: Simplify right side
    286.06x = 56,614.01
  5. Step 5: Solve for x
    x = 56,614.01/286.06
  6. Step 6: Final answer
    x = 197.91

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