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Finding the Fourth Proportional to 442.12, 662.77 and 225.44

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Solution

The fourth proportional to 442.12, 662.77 and 225.44 is: 337.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.12 : 662.77 = 225.44 : x
  2. Step 2: Convert to fraction form
    442.12/662.77 = 225.44/x
  3. Step 3: Cross multiply
    442.12x = 662.77 × 225.44
  4. Step 4: Simplify right side
    442.12x = 149,415.96
  5. Step 5: Solve for x
    x = 149,415.96/442.12
  6. Step 6: Final answer
    x = 337.96

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