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Finding the Fourth Proportional to 288,320.31, 397,873.92 and 159,256.21

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Solution

The fourth proportional to 288,320.31, 397,873.92 and 159,256.21 is: 219,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,320.31 : 397,873.92 = 159,256.21 : x
  2. Step 2: Convert to fraction form
    288,320.31/397,873.92 = 159,256.21/x
  3. Step 3: Cross multiply
    288,320.31x = 397,873.92 × 159,256.21
  4. Step 4: Simplify right side
    288,320.31x = 63,363,891,760.76
  5. Step 5: Solve for x
    x = 63,363,891,760.76/288,320.31
  6. Step 6: Final answer
    x = 219,769.09

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