Home / 260.23-390.33-97.90

Finding the Fourth Proportional to 260.23, 390.33 and 97.90

Calculator

Solution

The fourth proportional to 260.23, 390.33 and 97.90 is: 146.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.23 : 390.33 = 97.90 : x
  2. Step 2: Convert to fraction form
    260.23/390.33 = 97.90/x
  3. Step 3: Cross multiply
    260.23x = 390.33 × 97.90
  4. Step 4: Simplify right side
    260.23x = 38,213.31
  5. Step 5: Solve for x
    x = 38,213.31/260.23
  6. Step 6: Final answer
    x = 146.84

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.