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Finding the Fourth Proportional to 312,778.26, 431,634.51 and 169,538.22

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Solution

The fourth proportional to 312,778.26, 431,634.51 and 169,538.22 is: 233,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,778.26 : 431,634.51 = 169,538.22 : x
  2. Step 2: Convert to fraction form
    312,778.26/431,634.51 = 169,538.22/x
  3. Step 3: Cross multiply
    312,778.26x = 431,634.51 × 169,538.22
  4. Step 4: Simplify right side
    312,778.26x = 73,178,546,515.97
  5. Step 5: Solve for x
    x = 73,178,546,515.97/312,778.26
  6. Step 6: Final answer
    x = 233,963.02

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