Home / 211,105-430,806

Finding the Third Proportional to 211,105 and 430,806

Calculator

Solution

The third proportional to 211,105 and 430,806 is: 879,154.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,105 : 430,806 = 430,806 : x
  2. Step 2: Convert to fraction form
    211,105/430,806 = 430,806/x
  3. Step 3: Cross multiply
    211,105x = 430,806 × 430,806
  4. Step 4: Simplify right side
    211,105x = 185,593,809,636
  5. Step 5: Solve for x
    x = 185,593,809,636/211,105
  6. Step 6: Final answer
    x = 879,154.02

Related Problems

Find third proportional to 105,552.50 and 215,403
Half scale
Find third proportional to 422,210 and 861,612
Double scale
Find third proportional to 211,107 and 430,810
Similar ratio
Find third proportional to 316,657.50 and 646,209
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.