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Finding the Fourth Proportional to 217,819.60, 326,729.40 and 112,843.60

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Solution

The fourth proportional to 217,819.60, 326,729.40 and 112,843.60 is: 169,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,819.60 : 326,729.40 = 112,843.60 : x
  2. Step 2: Convert to fraction form
    217,819.60/326,729.40 = 112,843.60/x
  3. Step 3: Cross multiply
    217,819.60x = 326,729.40 × 112,843.60
  4. Step 4: Simplify right side
    217,819.60x = 36,869,321,721.84
  5. Step 5: Solve for x
    x = 36,869,321,721.84/217,819.60
  6. Step 6: Final answer
    x = 169,265.40

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