Home / 202,220-313,990

Finding the Third Proportional to 202,220 and 313,990

Calculator

Solution

The third proportional to 202,220 and 313,990 is: 487,536.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,220 : 313,990 = 313,990 : x
  2. Step 2: Convert to fraction form
    202,220/313,990 = 313,990/x
  3. Step 3: Cross multiply
    202,220x = 313,990 × 313,990
  4. Step 4: Simplify right side
    202,220x = 98,589,720,100
  5. Step 5: Solve for x
    x = 98,589,720,100/202,220
  6. Step 6: Final answer
    x = 487,536.94

Related Problems

Find third proportional to 101,110 and 156,995
Half scale
Find third proportional to 404,440 and 627,980
Double scale
Find third proportional to 202,222 and 313,993
Similar ratio
Find third proportional to 303,330 and 470,985
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.