Home / 259,255.27-388,882.92-81,776.14

Finding the Fourth Proportional to 259,255.27, 388,882.92 and 81,776.14

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Solution

The fourth proportional to 259,255.27, 388,882.92 and 81,776.14 is: 122,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,255.27 : 388,882.92 = 81,776.14 : x
  2. Step 2: Convert to fraction form
    259,255.27/388,882.92 = 81,776.14/x
  3. Step 3: Cross multiply
    259,255.27x = 388,882.92 × 81,776.14
  4. Step 4: Simplify right side
    259,255.27x = 31,801,344,109.53
  5. Step 5: Solve for x
    x = 31,801,344,109.53/259,255.27
  6. Step 6: Final answer
    x = 122,664.21

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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.