Home / 121,235-263,206

Finding the Third Proportional to 121,235 and 263,206

Calculator

Solution

The third proportional to 121,235 and 263,206 is: 571,430.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,235 : 263,206 = 263,206 : x
  2. Step 2: Convert to fraction form
    121,235/263,206 = 263,206/x
  3. Step 3: Cross multiply
    121,235x = 263,206 × 263,206
  4. Step 4: Simplify right side
    121,235x = 69,277,398,436
  5. Step 5: Solve for x
    x = 69,277,398,436/121,235
  6. Step 6: Final answer
    x = 571,430.68

Related Problems

Find third proportional to 60,617.50 and 131,603
Half scale
Find third proportional to 242,470 and 526,412
Double scale
Find third proportional to 121,237 and 263,210
Similar ratio
Find third proportional to 181,852.50 and 394,809
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.