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Finding the Fourth Proportional to 280,171.78, 386,621.31 and 159,342.46

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Solution

The fourth proportional to 280,171.78, 386,621.31 and 159,342.46 is: 219,883.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,171.78 : 386,621.31 = 159,342.46 : x
  2. Step 2: Convert to fraction form
    280,171.78/386,621.31 = 159,342.46/x
  3. Step 3: Cross multiply
    280,171.78x = 386,621.31 × 159,342.46
  4. Step 4: Simplify right side
    280,171.78x = 61,605,190,623.82
  5. Step 5: Solve for x
    x = 61,605,190,623.82/280,171.78
  6. Step 6: Final answer
    x = 219,883.64

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