Home / 100,512-221,112

Finding the Third Proportional to 100,512 and 221,112

Calculator

Solution

The third proportional to 100,512 and 221,112 is: 486,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,512 : 221,112 = 221,112 : x
  2. Step 2: Convert to fraction form
    100,512/221,112 = 221,112/x
  3. Step 3: Cross multiply
    100,512x = 221,112 × 221,112
  4. Step 4: Simplify right side
    100,512x = 48,890,516,544
  5. Step 5: Solve for x
    x = 48,890,516,544/100,512
  6. Step 6: Final answer
    x = 486,414.72

Related Problems

Find third proportional to 50,256 and 110,556
Half scale
Find third proportional to 201,024 and 442,224
Double scale
Find third proportional to 100,514 and 221,116
Similar ratio
Find third proportional to 150,768 and 331,668
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.