Home / 71,628-155,711

Finding the Third Proportional to 71,628 and 155,711

Calculator

Solution

The third proportional to 71,628 and 155,711 is: 338,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,628 : 155,711 = 155,711 : x
  2. Step 2: Convert to fraction form
    71,628/155,711 = 155,711/x
  3. Step 3: Cross multiply
    71,628x = 155,711 × 155,711
  4. Step 4: Simplify right side
    71,628x = 24,245,915,521
  5. Step 5: Solve for x
    x = 24,245,915,521/71,628
  6. Step 6: Final answer
    x = 338,497.73

Related Problems

Find third proportional to 35,814 and 77,855.50
Half scale
Find third proportional to 143,256 and 311,422
Double scale
Find third proportional to 71,630 and 155,715
Similar ratio
Find third proportional to 107,442 and 233,566.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.