Home / 100,968-221,520

Finding the Third Proportional to 100,968 and 221,520

Calculator

Solution

The third proportional to 100,968 and 221,520 is: 486,006.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,968 : 221,520 = 221,520 : x
  2. Step 2: Convert to fraction form
    100,968/221,520 = 221,520/x
  3. Step 3: Cross multiply
    100,968x = 221,520 × 221,520
  4. Step 4: Simplify right side
    100,968x = 49,071,110,400
  5. Step 5: Solve for x
    x = 49,071,110,400/100,968
  6. Step 6: Final answer
    x = 486,006.56

Related Problems

Find third proportional to 50,484 and 110,760
Half scale
Find third proportional to 201,936 and 443,040
Double scale
Find third proportional to 100,970 and 221,524
Similar ratio
Find third proportional to 151,452 and 332,280
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.