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Finding the Fourth Proportional to 341,711.20, 512,413.20 and 131,279.20

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Solution

The fourth proportional to 341,711.20, 512,413.20 and 131,279.20 is: 196,859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,711.20 : 512,413.20 = 131,279.20 : x
  2. Step 2: Convert to fraction form
    341,711.20/512,413.20 = 131,279.20/x
  3. Step 3: Cross multiply
    341,711.20x = 512,413.20 × 131,279.20
  4. Step 4: Simplify right side
    341,711.20x = 67,269,194,965.44
  5. Step 5: Solve for x
    x = 67,269,194,965.44/341,711.20
  6. Step 6: Final answer
    x = 196,859.79

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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.