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Finding the Fourth Proportional to 259,900.97, 389,449.62 and 202,839.58

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Solution

The fourth proportional to 259,900.97, 389,449.62 and 202,839.58 is: 303,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,900.97 : 389,449.62 = 202,839.58 : x
  2. Step 2: Convert to fraction form
    259,900.97/389,449.62 = 202,839.58/x
  3. Step 3: Cross multiply
    259,900.97x = 389,449.62 × 202,839.58
  4. Step 4: Simplify right side
    259,900.97x = 78,995,797,838.77
  5. Step 5: Solve for x
    x = 78,995,797,838.77/259,900.97
  6. Step 6: Final answer
    x = 303,945.76

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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.