Home / 215,162-439,828

Finding the Third Proportional to 215,162 and 439,828

Calculator

Solution

The third proportional to 215,162 and 439,828 is: 899,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,162 : 439,828 = 439,828 : x
  2. Step 2: Convert to fraction form
    215,162/439,828 = 439,828/x
  3. Step 3: Cross multiply
    215,162x = 439,828 × 439,828
  4. Step 4: Simplify right side
    215,162x = 193,448,669,584
  5. Step 5: Solve for x
    x = 193,448,669,584/215,162
  6. Step 6: Final answer
    x = 899,083.80

Related Problems

Find third proportional to 107,581 and 219,914
Half scale
Find third proportional to 430,324 and 879,656
Double scale
Find third proportional to 215,164 and 439,832
Similar ratio
Find third proportional to 322,743 and 659,742
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.