Home / 220.82-331.37-83.97

Finding the Fourth Proportional to 220.82, 331.37 and 83.97

Calculator

Solution

The fourth proportional to 220.82, 331.37 and 83.97 is: 126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.82 : 331.37 = 83.97 : x
  2. Step 2: Convert to fraction form
    220.82/331.37 = 83.97/x
  3. Step 3: Cross multiply
    220.82x = 331.37 × 83.97
  4. Step 4: Simplify right side
    220.82x = 27,824.72
  5. Step 5: Solve for x
    x = 27,824.72/220.82
  6. Step 6: Final answer
    x = 126.01

Related Problems

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.