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Finding the Fourth Proportional to 259,772.80, 389,659.20 and 188,924.80

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Solution

The fourth proportional to 259,772.80, 389,659.20 and 188,924.80 is: 283,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,772.80 : 389,659.20 = 188,924.80 : x
  2. Step 2: Convert to fraction form
    259,772.80/389,659.20 = 188,924.80/x
  3. Step 3: Cross multiply
    259,772.80x = 389,659.20 × 188,924.80
  4. Step 4: Simplify right side
    259,772.80x = 73,616,286,428.16
  5. Step 5: Solve for x
    x = 73,616,286,428.16/259,772.80
  6. Step 6: Final answer
    x = 283,387.20

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