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Finding the Fourth Proportional to 289,520.11, 434,229.09 and 111,881.08

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Solution

The fourth proportional to 289,520.11, 434,229.09 and 111,881.08 is: 167,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,520.11 : 434,229.09 = 111,881.08 : x
  2. Step 2: Convert to fraction form
    289,520.11/434,229.09 = 111,881.08/x
  3. Step 3: Cross multiply
    289,520.11x = 434,229.09 × 111,881.08
  4. Step 4: Simplify right side
    289,520.11x = 48,582,019,556.62
  5. Step 5: Solve for x
    x = 48,582,019,556.62/289,520.11
  6. Step 6: Final answer
    x = 167,801.88

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