Home / 223,689-338,790

Finding the Third Proportional to 223,689 and 338,790

Calculator

Solution

The third proportional to 223,689 and 338,790 is: 513,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,689 : 338,790 = 338,790 : x
  2. Step 2: Convert to fraction form
    223,689/338,790 = 338,790/x
  3. Step 3: Cross multiply
    223,689x = 338,790 × 338,790
  4. Step 4: Simplify right side
    223,689x = 114,778,664,100
  5. Step 5: Solve for x
    x = 114,778,664,100/223,689
  6. Step 6: Final answer
    x = 513,117.16

Related Problems

Find third proportional to 111,844.50 and 169,395
Half scale
Find third proportional to 447,378 and 677,580
Double scale
Find third proportional to 223,691 and 338,793
Similar ratio
Find third proportional to 335,533.50 and 508,185
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.