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Finding the Fourth Proportional to 269,362.80, 403,979.40 and 82,375.92

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Solution

The fourth proportional to 269,362.80, 403,979.40 and 82,375.92 is: 123,544.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,362.80 : 403,979.40 = 82,375.92 : x
  2. Step 2: Convert to fraction form
    269,362.80/403,979.40 = 82,375.92/x
  3. Step 3: Cross multiply
    269,362.80x = 403,979.40 × 82,375.92
  4. Step 4: Simplify right side
    269,362.80x = 33,278,174,736.05
  5. Step 5: Solve for x
    x = 33,278,174,736.05/269,362.80
  6. Step 6: Final answer
    x = 123,544.06

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1.5x scale

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.