Home / 66,928-144,416

Finding the Third Proportional to 66,928 and 144,416

Calculator

Solution

The third proportional to 66,928 and 144,416 is: 311,618.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928 : 144,416 = 144,416 : x
  2. Step 2: Convert to fraction form
    66,928/144,416 = 144,416/x
  3. Step 3: Cross multiply
    66,928x = 144,416 × 144,416
  4. Step 4: Simplify right side
    66,928x = 20,855,981,056
  5. Step 5: Solve for x
    x = 20,855,981,056/66,928
  6. Step 6: Final answer
    x = 311,618.17

Related Problems

Find third proportional to 33,464 and 72,208
Half scale
Find third proportional to 133,856 and 288,832
Double scale
Find third proportional to 66,930 and 144,420
Similar ratio
Find third proportional to 100,392 and 216,624
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.