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Finding the Fourth Proportional to 278,713.77, 419,930.08 and 252,090.48

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Solution

The fourth proportional to 278,713.77, 419,930.08 and 252,090.48 is: 379,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,713.77 : 419,930.08 = 252,090.48 : x
  2. Step 2: Convert to fraction form
    278,713.77/419,930.08 = 252,090.48/x
  3. Step 3: Cross multiply
    278,713.77x = 419,930.08 × 252,090.48
  4. Step 4: Simplify right side
    278,713.77x = 105,860,375,433.64
  5. Step 5: Solve for x
    x = 105,860,375,433.64/278,713.77
  6. Step 6: Final answer
    x = 379,817.53

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