Home / 221,939-485,398

Finding the Third Proportional to 221,939 and 485,398

Calculator

Solution

The third proportional to 221,939 and 485,398 is: 1,061,603.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,939 : 485,398 = 485,398 : x
  2. Step 2: Convert to fraction form
    221,939/485,398 = 485,398/x
  3. Step 3: Cross multiply
    221,939x = 485,398 × 485,398
  4. Step 4: Simplify right side
    221,939x = 235,611,218,404
  5. Step 5: Solve for x
    x = 235,611,218,404/221,939
  6. Step 6: Final answer
    x = 1,061,603.50

Related Problems

Find third proportional to 110,969.50 and 242,699
Half scale
Find third proportional to 443,878 and 970,796
Double scale
Find third proportional to 221,941 and 485,402
Similar ratio
Find third proportional to 332,908.50 and 728,097
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.