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Finding the Fourth Proportional to 311,999.78, 430,559.80 and 176,062.62

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Solution

The fourth proportional to 311,999.78, 430,559.80 and 176,062.62 is: 242,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,999.78 : 430,559.80 = 176,062.62 : x
  2. Step 2: Convert to fraction form
    311,999.78/430,559.80 = 176,062.62/x
  3. Step 3: Cross multiply
    311,999.78x = 430,559.80 × 176,062.62
  4. Step 4: Simplify right side
    311,999.78x = 75,805,486,454.68
  5. Step 5: Solve for x
    x = 75,805,486,454.68/311,999.78
  6. Step 6: Final answer
    x = 242,966.47

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