Home / 260-648

Finding the Third Proportional to 260 and 648

Calculator

Solution

The third proportional to 260 and 648 is: 1,615.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    260 : 648 = 648 : x
  2. Step 2: Convert to fraction form
    260/648 = 648/x
  3. Step 3: Cross multiply
    260x = 648 × 648
  4. Step 4: Simplify right side
    260x = 419,904
  5. Step 5: Solve for x
    x = 419,904/260
  6. Step 6: Final answer
    x = 1,615.02

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.