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Finding the Fourth Proportional to 305,729.92, 421,884.16 and 171,568

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Solution

The fourth proportional to 305,729.92, 421,884.16 and 171,568 is: 236,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,729.92 : 421,884.16 = 171,568 : x
  2. Step 2: Convert to fraction form
    305,729.92/421,884.16 = 171,568/x
  3. Step 3: Cross multiply
    305,729.92x = 421,884.16 × 171,568
  4. Step 4: Simplify right side
    305,729.92x = 72,381,821,562.88
  5. Step 5: Solve for x
    x = 72,381,821,562.88/305,729.92
  6. Step 6: Final answer
    x = 236,750.86

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