Home / 215,558-326,321

Finding the Third Proportional to 215,558 and 326,321

Calculator

Solution

The third proportional to 215,558 and 326,321 is: 493,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,558 : 326,321 = 326,321 : x
  2. Step 2: Convert to fraction form
    215,558/326,321 = 326,321/x
  3. Step 3: Cross multiply
    215,558x = 326,321 × 326,321
  4. Step 4: Simplify right side
    215,558x = 106,485,395,041
  5. Step 5: Solve for x
    x = 106,485,395,041/215,558
  6. Step 6: Final answer
    x = 493,998.81

Related Problems

Find third proportional to 107,779 and 163,160.50
Half scale
Find third proportional to 431,116 and 652,642
Double scale
Find third proportional to 215,560 and 326,324
Similar ratio
Find third proportional to 323,337 and 489,481.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.