Home / 215,853-326,790

Finding the Third Proportional to 215,853 and 326,790

Calculator

Solution

The third proportional to 215,853 and 326,790 is: 494,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,853 : 326,790 = 326,790 : x
  2. Step 2: Convert to fraction form
    215,853/326,790 = 326,790/x
  3. Step 3: Cross multiply
    215,853x = 326,790 × 326,790
  4. Step 4: Simplify right side
    215,853x = 106,791,704,100
  5. Step 5: Solve for x
    x = 106,791,704,100/215,853
  6. Step 6: Final answer
    x = 494,742.74

Related Problems

Find third proportional to 107,926.50 and 163,395
Half scale
Find third proportional to 431,706 and 653,580
Double scale
Find third proportional to 215,855 and 326,793
Similar ratio
Find third proportional to 323,779.50 and 490,185
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.