Home / 121,108-282,872

Finding the Third Proportional to 121,108 and 282,872

Calculator

Solution

The third proportional to 121,108 and 282,872 is: 660,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,108 : 282,872 = 282,872 : x
  2. Step 2: Convert to fraction form
    121,108/282,872 = 282,872/x
  3. Step 3: Cross multiply
    121,108x = 282,872 × 282,872
  4. Step 4: Simplify right side
    121,108x = 80,016,568,384
  5. Step 5: Solve for x
    x = 80,016,568,384/121,108
  6. Step 6: Final answer
    x = 660,704.23

Related Problems

Find third proportional to 60,554 and 141,436
Half scale
Find third proportional to 242,216 and 565,744
Double scale
Find third proportional to 121,110 and 282,877
Similar ratio
Find third proportional to 181,662 and 424,308
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.