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Finding the Fourth Proportional to 442,197.20, 663,390.24 and 142,694.80

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Solution

The fourth proportional to 442,197.20, 663,390.24 and 142,694.80 is: 214,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,197.20 : 663,390.24 = 142,694.80 : x
  2. Step 2: Convert to fraction form
    442,197.20/663,390.24 = 142,694.80/x
  3. Step 3: Cross multiply
    442,197.20x = 663,390.24 × 142,694.80
  4. Step 4: Simplify right side
    442,197.20x = 94,662,337,618.75
  5. Step 5: Solve for x
    x = 94,662,337,618.75/442,197.20
  6. Step 6: Final answer
    x = 214,072.68

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