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Finding the Fourth Proportional to 305,753.67, 421,950.87 and 169,789.77

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Solution

The fourth proportional to 305,753.67, 421,950.87 and 169,789.77 is: 234,315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,753.67 : 421,950.87 = 169,789.77 : x
  2. Step 2: Convert to fraction form
    305,753.67/421,950.87 = 169,789.77/x
  3. Step 3: Cross multiply
    305,753.67x = 421,950.87 × 169,789.77
  4. Step 4: Simplify right side
    305,753.67x = 71,642,941,168.60
  5. Step 5: Solve for x
    x = 71,642,941,168.60/305,753.67
  6. Step 6: Final answer
    x = 234,315.88

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