Home / 129,760-279,162

Finding the Third Proportional to 129,760 and 279,162

Calculator

Solution

The third proportional to 129,760 and 279,162 is: 600,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760 : 279,162 = 279,162 : x
  2. Step 2: Convert to fraction form
    129,760/279,162 = 279,162/x
  3. Step 3: Cross multiply
    129,760x = 279,162 × 279,162
  4. Step 4: Simplify right side
    129,760x = 77,931,422,244
  5. Step 5: Solve for x
    x = 77,931,422,244/129,760
  6. Step 6: Final answer
    x = 600,581.24

Related Problems

Find third proportional to 64,880 and 139,581
Half scale
Find third proportional to 259,520 and 558,324
Double scale
Find third proportional to 129,762 and 279,166
Similar ratio
Find third proportional to 194,640 and 418,743
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.