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Finding the Fourth Proportional to 256,730.31, 384,833.03 and 88,200.09

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Solution

The fourth proportional to 256,730.31, 384,833.03 and 88,200.09 is: 132,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,730.31 : 384,833.03 = 88,200.09 : x
  2. Step 2: Convert to fraction form
    256,730.31/384,833.03 = 88,200.09/x
  3. Step 3: Cross multiply
    256,730.31x = 384,833.03 × 88,200.09
  4. Step 4: Simplify right side
    256,730.31x = 33,942,307,439.97
  5. Step 5: Solve for x
    x = 33,942,307,439.97/256,730.31
  6. Step 6: Final answer
    x = 132,209.97

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