Home / 221,483-485,868

Finding the Third Proportional to 221,483 and 485,868

Calculator

Solution

The third proportional to 221,483 and 485,868 is: 1,065,850.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,483 : 485,868 = 485,868 : x
  2. Step 2: Convert to fraction form
    221,483/485,868 = 485,868/x
  3. Step 3: Cross multiply
    221,483x = 485,868 × 485,868
  4. Step 4: Simplify right side
    221,483x = 236,067,713,424
  5. Step 5: Solve for x
    x = 236,067,713,424/221,483
  6. Step 6: Final answer
    x = 1,065,850.26

Related Problems

Find third proportional to 110,741.50 and 242,934
Half scale
Find third proportional to 442,966 and 971,736
Double scale
Find third proportional to 221,485 and 485,872
Similar ratio
Find third proportional to 332,224.50 and 728,802
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.