Home / 307,949.58-421,883.89-296,436.22

Finding the Fourth Proportional to 307,949.58, 421,883.89 and 296,436.22

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Solution

The fourth proportional to 307,949.58, 421,883.89 and 296,436.22 is: 406,110.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,949.58 : 421,883.89 = 296,436.22 : x
  2. Step 2: Convert to fraction form
    307,949.58/421,883.89 = 296,436.22/x
  3. Step 3: Cross multiply
    307,949.58x = 421,883.89 × 296,436.22
  4. Step 4: Simplify right side
    307,949.58x = 125,061,667,249.95
  5. Step 5: Solve for x
    x = 125,061,667,249.95/307,949.58
  6. Step 6: Final answer
    x = 406,110.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.