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Finding the Fourth Proportional to 298,288.20, 447,431.94 and 204,509.64

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Solution

The fourth proportional to 298,288.20, 447,431.94 and 204,509.64 is: 306,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,288.20 : 447,431.94 = 204,509.64 : x
  2. Step 2: Convert to fraction form
    298,288.20/447,431.94 = 204,509.64/x
  3. Step 3: Cross multiply
    298,288.20x = 447,431.94 × 204,509.64
  4. Step 4: Simplify right side
    298,288.20x = 91,504,144,973.90
  5. Step 5: Solve for x
    x = 91,504,144,973.90/298,288.20
  6. Step 6: Final answer
    x = 306,764.21

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