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Finding the Fourth Proportional to 205,659.20, 308,949.60 and 197,262.40

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Solution

The fourth proportional to 205,659.20, 308,949.60 and 197,262.40 is: 296,335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,659.20 : 308,949.60 = 197,262.40 : x
  2. Step 2: Convert to fraction form
    205,659.20/308,949.60 = 197,262.40/x
  3. Step 3: Cross multiply
    205,659.20x = 308,949.60 × 197,262.40
  4. Step 4: Simplify right side
    205,659.20x = 60,944,139,575.04
  5. Step 5: Solve for x
    x = 60,944,139,575.04/205,659.20
  6. Step 6: Final answer
    x = 296,335.59

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