Home / 135,808-211,480

Finding the Third Proportional to 135,808 and 211,480

Calculator

Solution

The third proportional to 135,808 and 211,480 is: 329,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,808 : 211,480 = 211,480 : x
  2. Step 2: Convert to fraction form
    135,808/211,480 = 211,480/x
  3. Step 3: Cross multiply
    135,808x = 211,480 × 211,480
  4. Step 4: Simplify right side
    135,808x = 44,723,790,400
  5. Step 5: Solve for x
    x = 44,723,790,400/135,808
  6. Step 6: Final answer
    x = 329,316.32

Related Problems

Find third proportional to 67,904 and 105,740
Half scale
Find third proportional to 271,616 and 422,960
Double scale
Find third proportional to 135,810 and 211,483
Similar ratio
Find third proportional to 203,712 and 317,220
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.