Home / 129,922-280,568

Finding the Third Proportional to 129,922 and 280,568

Calculator

Solution

The third proportional to 129,922 and 280,568 is: 605,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,922 : 280,568 = 280,568 : x
  2. Step 2: Convert to fraction form
    129,922/280,568 = 280,568/x
  3. Step 3: Cross multiply
    129,922x = 280,568 × 280,568
  4. Step 4: Simplify right side
    129,922x = 78,718,402,624
  5. Step 5: Solve for x
    x = 78,718,402,624/129,922
  6. Step 6: Final answer
    x = 605,889.71

Related Problems

Find third proportional to 64,961 and 140,284
Half scale
Find third proportional to 259,844 and 561,136
Double scale
Find third proportional to 129,924 and 280,572
Similar ratio
Find third proportional to 194,883 and 420,852
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.