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Finding the Fourth Proportional to 311,956.30, 430,552.63 and 176,028.78

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Solution

The fourth proportional to 311,956.30, 430,552.63 and 176,028.78 is: 242,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,956.30 : 430,552.63 = 176,028.78 : x
  2. Step 2: Convert to fraction form
    311,956.30/430,552.63 = 176,028.78/x
  3. Step 3: Cross multiply
    311,956.30x = 430,552.63 × 176,028.78
  4. Step 4: Simplify right side
    311,956.30x = 75,789,654,184.69
  5. Step 5: Solve for x
    x = 75,789,654,184.69/311,956.30
  6. Step 6: Final answer
    x = 242,949.59

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