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Finding the Fourth Proportional to 412,342.55, 618,530.16 and 196,149.35

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Solution

The fourth proportional to 412,342.55, 618,530.16 and 196,149.35 is: 294,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,342.55 : 618,530.16 = 196,149.35 : x
  2. Step 2: Convert to fraction form
    412,342.55/618,530.16 = 196,149.35/x
  3. Step 3: Cross multiply
    412,342.55x = 618,530.16 × 196,149.35
  4. Step 4: Simplify right side
    412,342.55x = 121,324,288,839.40
  5. Step 5: Solve for x
    x = 121,324,288,839.40/412,342.55
  6. Step 6: Final answer
    x = 294,231.80

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