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Finding the Fourth Proportional to 442,879.20, 664,405.20 and 190,159.20

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Solution

The fourth proportional to 442,879.20, 664,405.20 and 190,159.20 is: 285,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,879.20 : 664,405.20 = 190,159.20 : x
  2. Step 2: Convert to fraction form
    442,879.20/664,405.20 = 190,159.20/x
  3. Step 3: Cross multiply
    442,879.20x = 664,405.20 × 190,159.20
  4. Step 4: Simplify right side
    442,879.20x = 126,342,761,307.84
  5. Step 5: Solve for x
    x = 126,342,761,307.84/442,879.20
  6. Step 6: Final answer
    x = 285,275.90

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