Home / 100,560-221,208

Finding the Third Proportional to 100,560 and 221,208

Calculator

Solution

The third proportional to 100,560 and 221,208 is: 486,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,560 : 221,208 = 221,208 : x
  2. Step 2: Convert to fraction form
    100,560/221,208 = 221,208/x
  3. Step 3: Cross multiply
    100,560x = 221,208 × 221,208
  4. Step 4: Simplify right side
    100,560x = 48,932,979,264
  5. Step 5: Solve for x
    x = 48,932,979,264/100,560
  6. Step 6: Final answer
    x = 486,604.81

Related Problems

Find third proportional to 50,280 and 110,604
Half scale
Find third proportional to 201,120 and 442,416
Double scale
Find third proportional to 100,562 and 221,212
Similar ratio
Find third proportional to 150,840 and 331,812
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.