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Finding the Fourth Proportional to 245,855.44, 339,252.47 and 138,422.71

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Solution

The fourth proportional to 245,855.44, 339,252.47 and 138,422.71 is: 191,007.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,855.44 : 339,252.47 = 138,422.71 : x
  2. Step 2: Convert to fraction form
    245,855.44/339,252.47 = 138,422.71/x
  3. Step 3: Cross multiply
    245,855.44x = 339,252.47 × 138,422.71
  4. Step 4: Simplify right side
    245,855.44x = 46,960,245,579.48
  5. Step 5: Solve for x
    x = 46,960,245,579.48/245,855.44
  6. Step 6: Final answer
    x = 191,007.55

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