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Finding the Fourth Proportional to 312,183.20, 430,813.80 and 168,943.20

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Solution

The fourth proportional to 312,183.20, 430,813.80 and 168,943.20 is: 233,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,183.20 : 430,813.80 = 168,943.20 : x
  2. Step 2: Convert to fraction form
    312,183.20/430,813.80 = 168,943.20/x
  3. Step 3: Cross multiply
    312,183.20x = 430,813.80 × 168,943.20
  4. Step 4: Simplify right side
    312,183.20x = 72,783,061,976.16
  5. Step 5: Solve for x
    x = 72,783,061,976.16/312,183.20
  6. Step 6: Final answer
    x = 233,142.15

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