Home / 339-631

Finding the Third Proportional to 339 and 631

Calculator

Solution

The third proportional to 339 and 631 is: 1,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339 : 631 = 631 : x
  2. Step 2: Convert to fraction form
    339/631 = 631/x
  3. Step 3: Cross multiply
    339x = 631 × 631
  4. Step 4: Simplify right side
    339x = 398,161
  5. Step 5: Solve for x
    x = 398,161/339
  6. Step 6: Final answer
    x = 1,174.52

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.