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Finding the Fourth Proportional to 251.51, 346.97 and 158.09

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Solution

The fourth proportional to 251.51, 346.97 and 158.09 is: 218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.51 : 346.97 = 158.09 : x
  2. Step 2: Convert to fraction form
    251.51/346.97 = 158.09/x
  3. Step 3: Cross multiply
    251.51x = 346.97 × 158.09
  4. Step 4: Simplify right side
    251.51x = 54,851.15
  5. Step 5: Solve for x
    x = 54,851.15/251.51
  6. Step 6: Final answer
    x = 218.09

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