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Finding the Fourth Proportional to 397,112.62, 595,540.95 and 130,809.73

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Solution

The fourth proportional to 397,112.62, 595,540.95 and 130,809.73 is: 196,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,112.62 : 595,540.95 = 130,809.73 : x
  2. Step 2: Convert to fraction form
    397,112.62/595,540.95 = 130,809.73/x
  3. Step 3: Cross multiply
    397,112.62x = 595,540.95 × 130,809.73
  4. Step 4: Simplify right side
    397,112.62x = 77,902,550,873.44
  5. Step 5: Solve for x
    x = 77,902,550,873.44/397,112.62
  6. Step 6: Final answer
    x = 196,172.44

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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.