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Finding the Fourth Proportional to 267, 368.55 and 189.60

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Solution

The fourth proportional to 267, 368.55 and 189.60 is: 261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    267 : 368.55 = 189.60 : x
  2. Step 2: Convert to fraction form
    267/368.55 = 189.60/x
  3. Step 3: Cross multiply
    267x = 368.55 × 189.60
  4. Step 4: Simplify right side
    267x = 69,877.08
  5. Step 5: Solve for x
    x = 69,877.08/267
  6. Step 6: Final answer
    x = 261.71

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