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Finding the Fourth Proportional to 317,721.37, 438,345.88 and 203,067.12

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Solution

The fourth proportional to 317,721.37, 438,345.88 and 203,067.12 is: 280,162.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,721.37 : 438,345.88 = 203,067.12 : x
  2. Step 2: Convert to fraction form
    317,721.37/438,345.88 = 203,067.12/x
  3. Step 3: Cross multiply
    317,721.37x = 438,345.88 × 203,067.12
  4. Step 4: Simplify right side
    317,721.37x = 89,013,636,551.59
  5. Step 5: Solve for x
    x = 89,013,636,551.59/317,721.37
  6. Step 6: Final answer
    x = 280,162.57

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