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Finding the Fourth Proportional to 415.44, 622.62 and 222.84

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Solution

The fourth proportional to 415.44, 622.62 and 222.84 is: 333.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.44 : 622.62 = 222.84 : x
  2. Step 2: Convert to fraction form
    415.44/622.62 = 222.84/x
  3. Step 3: Cross multiply
    415.44x = 622.62 × 222.84
  4. Step 4: Simplify right side
    415.44x = 138,744.64
  5. Step 5: Solve for x
    x = 138,744.64/415.44
  6. Step 6: Final answer
    x = 333.97

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