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Finding the Fourth Proportional to 419,615.68, 629,540.32 and 182,979.20

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Solution

The fourth proportional to 419,615.68, 629,540.32 and 182,979.20 is: 274,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,615.68 : 629,540.32 = 182,979.20 : x
  2. Step 2: Convert to fraction form
    419,615.68/629,540.32 = 182,979.20/x
  3. Step 3: Cross multiply
    419,615.68x = 629,540.32 × 182,979.20
  4. Step 4: Simplify right side
    419,615.68x = 115,192,784,121.34
  5. Step 5: Solve for x
    x = 115,192,784,121.34/419,615.68
  6. Step 6: Final answer
    x = 274,519.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.