Home / 100,879-221,350

Finding the Third Proportional to 100,879 and 221,350

Calculator

Solution

The third proportional to 100,879 and 221,350 is: 485,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,879 : 221,350 = 221,350 : x
  2. Step 2: Convert to fraction form
    100,879/221,350 = 221,350/x
  3. Step 3: Cross multiply
    100,879x = 221,350 × 221,350
  4. Step 4: Simplify right side
    100,879x = 48,995,822,500
  5. Step 5: Solve for x
    x = 48,995,822,500/100,879
  6. Step 6: Final answer
    x = 485,689.02

Related Problems

Find third proportional to 50,439.50 and 110,675
Half scale
Find third proportional to 201,758 and 442,700
Double scale
Find third proportional to 100,881 and 221,354
Similar ratio
Find third proportional to 151,318.50 and 332,025
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.