Home / 260.22-390.34-67.84

Finding the Fourth Proportional to 260.22, 390.34 and 67.84

Calculator

Solution

The fourth proportional to 260.22, 390.34 and 67.84 is: 101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.22 : 390.34 = 67.84 : x
  2. Step 2: Convert to fraction form
    260.22/390.34 = 67.84/x
  3. Step 3: Cross multiply
    260.22x = 390.34 × 67.84
  4. Step 4: Simplify right side
    260.22x = 26,480.67
  5. Step 5: Solve for x
    x = 26,480.67/260.22
  6. Step 6: Final answer
    x = 101.76

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.