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Finding the Fourth Proportional to 262.75, 394.19 and 185.87

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Solution

The fourth proportional to 262.75, 394.19 and 185.87 is: 278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.75 : 394.19 = 185.87 : x
  2. Step 2: Convert to fraction form
    262.75/394.19 = 185.87/x
  3. Step 3: Cross multiply
    262.75x = 394.19 × 185.87
  4. Step 4: Simplify right side
    262.75x = 73,268.10
  5. Step 5: Solve for x
    x = 73,268.10/262.75
  6. Step 6: Final answer
    x = 278.85

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