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Finding the Fourth Proportional to 263,578.78, 363,738.87 and 142,720.12

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Solution

The fourth proportional to 263,578.78, 363,738.87 and 142,720.12 is: 196,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,578.78 : 363,738.87 = 142,720.12 : x
  2. Step 2: Convert to fraction form
    263,578.78/363,738.87 = 142,720.12/x
  3. Step 3: Cross multiply
    263,578.78x = 363,738.87 × 142,720.12
  4. Step 4: Simplify right side
    263,578.78x = 51,912,855,175.06
  5. Step 5: Solve for x
    x = 51,912,855,175.06/263,578.78
  6. Step 6: Final answer
    x = 196,953.85

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