Home / 763.26-1,144.91-215.50

Finding the Fourth Proportional to 763.26, 1,144.91 and 215.50

Calculator

Solution

The fourth proportional to 763.26, 1,144.91 and 215.50 is: 323.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    763.26 : 1,144.91 = 215.50 : x
  2. Step 2: Convert to fraction form
    763.26/1,144.91 = 215.50/x
  3. Step 3: Cross multiply
    763.26x = 1,144.91 × 215.50
  4. Step 4: Simplify right side
    763.26x = 246,728.11
  5. Step 5: Solve for x
    x = 246,728.11/763.26
  6. Step 6: Final answer
    x = 323.26

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.