Home / 207,924-321,821

Finding the Third Proportional to 207,924 and 321,821

Calculator

Solution

The third proportional to 207,924 and 321,821 is: 498,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,924 : 321,821 = 321,821 : x
  2. Step 2: Convert to fraction form
    207,924/321,821 = 321,821/x
  3. Step 3: Cross multiply
    207,924x = 321,821 × 321,821
  4. Step 4: Simplify right side
    207,924x = 103,568,756,041
  5. Step 5: Solve for x
    x = 103,568,756,041/207,924
  6. Step 6: Final answer
    x = 498,108.71

Related Problems

Find third proportional to 103,962 and 160,910.50
Half scale
Find third proportional to 415,848 and 643,642
Double scale
Find third proportional to 207,926 and 321,824
Similar ratio
Find third proportional to 311,886 and 482,731.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.