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Finding the Fourth Proportional to 221,453.20, 331,839.60 and 165,028.60

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Solution

The fourth proportional to 221,453.20, 331,839.60 and 165,028.60 is: 247,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,453.20 : 331,839.60 = 165,028.60 : x
  2. Step 2: Convert to fraction form
    221,453.20/331,839.60 = 165,028.60/x
  3. Step 3: Cross multiply
    221,453.20x = 331,839.60 × 165,028.60
  4. Step 4: Simplify right side
    221,453.20x = 54,763,024,612.56
  5. Step 5: Solve for x
    x = 54,763,024,612.56/221,453.20
  6. Step 6: Final answer
    x = 247,289.38

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