Home / 200,920-311,352

Finding the Third Proportional to 200,920 and 311,352

Calculator

Solution

The third proportional to 200,920 and 311,352 is: 482,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,920 : 311,352 = 311,352 : x
  2. Step 2: Convert to fraction form
    200,920/311,352 = 311,352/x
  3. Step 3: Cross multiply
    200,920x = 311,352 × 311,352
  4. Step 4: Simplify right side
    200,920x = 96,940,067,904
  5. Step 5: Solve for x
    x = 96,940,067,904/200,920
  6. Step 6: Final answer
    x = 482,480.93

Related Problems

Find third proportional to 100,460 and 155,676
Half scale
Find third proportional to 401,840 and 622,704
Double scale
Find third proportional to 200,922 and 311,355
Similar ratio
Find third proportional to 301,380 and 467,028
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.