Home / 263.39-395.10-80.79

Finding the Fourth Proportional to 263.39, 395.10 and 80.79

Calculator

Solution

The fourth proportional to 263.39, 395.10 and 80.79 is: 121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.39 : 395.10 = 80.79 : x
  2. Step 2: Convert to fraction form
    263.39/395.10 = 80.79/x
  3. Step 3: Cross multiply
    263.39x = 395.10 × 80.79
  4. Step 4: Simplify right side
    263.39x = 31,920.13
  5. Step 5: Solve for x
    x = 31,920.13/263.39
  6. Step 6: Final answer
    x = 121.19

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.