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Finding the Fourth Proportional to 355,129.60, 532,694.40 and 222,419.20

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Solution

The fourth proportional to 355,129.60, 532,694.40 and 222,419.20 is: 333,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,129.60 : 532,694.40 = 222,419.20 : x
  2. Step 2: Convert to fraction form
    355,129.60/532,694.40 = 222,419.20/x
  3. Step 3: Cross multiply
    355,129.60x = 532,694.40 × 222,419.20
  4. Step 4: Simplify right side
    355,129.60x = 118,481,462,292.48
  5. Step 5: Solve for x
    x = 118,481,462,292.48/355,129.60
  6. Step 6: Final answer
    x = 333,628.80

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