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Finding the Fourth Proportional to 340,738.20, 511,107.30 and 334,177.20

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Solution

The fourth proportional to 340,738.20, 511,107.30 and 334,177.20 is: 501,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,738.20 : 511,107.30 = 334,177.20 : x
  2. Step 2: Convert to fraction form
    340,738.20/511,107.30 = 334,177.20/x
  3. Step 3: Cross multiply
    340,738.20x = 511,107.30 × 334,177.20
  4. Step 4: Simplify right side
    340,738.20x = 170,800,406,413.56
  5. Step 5: Solve for x
    x = 170,800,406,413.56/340,738.20
  6. Step 6: Final answer
    x = 501,265.80

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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.