Home / 225,519.80-311,099.33-139,451.27

Finding the Fourth Proportional to 225,519.80, 311,099.33 and 139,451.27

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Solution

The fourth proportional to 225,519.80, 311,099.33 and 139,451.27 is: 192,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,519.80 : 311,099.33 = 139,451.27 : x
  2. Step 2: Convert to fraction form
    225,519.80/311,099.33 = 139,451.27/x
  3. Step 3: Cross multiply
    225,519.80x = 311,099.33 × 139,451.27
  4. Step 4: Simplify right side
    225,519.80x = 43,383,194,411.90
  5. Step 5: Solve for x
    x = 43,383,194,411.90/225,519.80
  6. Step 6: Final answer
    x = 192,369.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.