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Finding the Fourth Proportional to 226.02, 339.64 and 172.56

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Solution

The fourth proportional to 226.02, 339.64 and 172.56 is: 259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.02 : 339.64 = 172.56 : x
  2. Step 2: Convert to fraction form
    226.02/339.64 = 172.56/x
  3. Step 3: Cross multiply
    226.02x = 339.64 × 172.56
  4. Step 4: Simplify right side
    226.02x = 58,610.09
  5. Step 5: Solve for x
    x = 58,610.09/226.02
  6. Step 6: Final answer
    x = 259.31

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