Home / 121,228-259,304

Finding the Third Proportional to 121,228 and 259,304

Calculator

Solution

The third proportional to 121,228 and 259,304 is: 554,645.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,228 : 259,304 = 259,304 : x
  2. Step 2: Convert to fraction form
    121,228/259,304 = 259,304/x
  3. Step 3: Cross multiply
    121,228x = 259,304 × 259,304
  4. Step 4: Simplify right side
    121,228x = 67,238,564,416
  5. Step 5: Solve for x
    x = 67,238,564,416/121,228
  6. Step 6: Final answer
    x = 554,645.50

Related Problems

Find third proportional to 60,614 and 129,652
Half scale
Find third proportional to 242,456 and 518,608
Double scale
Find third proportional to 121,230 and 259,308
Similar ratio
Find third proportional to 181,842 and 388,956
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.