Home / 131,874-206,721

Finding the Third Proportional to 131,874 and 206,721

Calculator

Solution

The third proportional to 131,874 and 206,721 is: 324,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,874 : 206,721 = 206,721 : x
  2. Step 2: Convert to fraction form
    131,874/206,721 = 206,721/x
  3. Step 3: Cross multiply
    131,874x = 206,721 × 206,721
  4. Step 4: Simplify right side
    131,874x = 42,733,571,841
  5. Step 5: Solve for x
    x = 42,733,571,841/131,874
  6. Step 6: Final answer
    x = 324,048.50

Related Problems

Find third proportional to 65,937 and 103,360.50
Half scale
Find third proportional to 263,748 and 413,442
Double scale
Find third proportional to 131,876 and 206,724
Similar ratio
Find third proportional to 197,811 and 310,081.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.