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Finding the Fourth Proportional to 345.81, 477.22 and 190.56

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Solution

The fourth proportional to 345.81, 477.22 and 190.56 is: 262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.81 : 477.22 = 190.56 : x
  2. Step 2: Convert to fraction form
    345.81/477.22 = 190.56/x
  3. Step 3: Cross multiply
    345.81x = 477.22 × 190.56
  4. Step 4: Simplify right side
    345.81x = 90,939.04
  5. Step 5: Solve for x
    x = 90,939.04/345.81
  6. Step 6: Final answer
    x = 262.97

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