Home / 250-318

Finding the Third Proportional to 250 and 318

Calculator

Solution

The third proportional to 250 and 318 is: 404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    250 : 318 = 318 : x
  2. Step 2: Convert to fraction form
    250/318 = 318/x
  3. Step 3: Cross multiply
    250x = 318 × 318
  4. Step 4: Simplify right side
    250x = 101,124
  5. Step 5: Solve for x
    x = 101,124/250
  6. Step 6: Final answer
    x = 404.50

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.