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Finding the Fourth Proportional to 331,072.40, 496,608.60 and 131,440.40

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Solution

The fourth proportional to 331,072.40, 496,608.60 and 131,440.40 is: 197,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,072.40 : 496,608.60 = 131,440.40 : x
  2. Step 2: Convert to fraction form
    331,072.40/496,608.60 = 131,440.40/x
  3. Step 3: Cross multiply
    331,072.40x = 496,608.60 × 131,440.40
  4. Step 4: Simplify right side
    331,072.40x = 65,274,433,027.44
  5. Step 5: Solve for x
    x = 65,274,433,027.44/331,072.40
  6. Step 6: Final answer
    x = 197,160.60

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