Home / 135,804-211,470

Finding the Third Proportional to 135,804 and 211,470

Calculator

Solution

The third proportional to 135,804 and 211,470 is: 329,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,804 : 211,470 = 211,470 : x
  2. Step 2: Convert to fraction form
    135,804/211,470 = 211,470/x
  3. Step 3: Cross multiply
    135,804x = 211,470 × 211,470
  4. Step 4: Simplify right side
    135,804x = 44,719,560,900
  5. Step 5: Solve for x
    x = 44,719,560,900/135,804
  6. Step 6: Final answer
    x = 329,294.87

Related Problems

Find third proportional to 67,902 and 105,735
Half scale
Find third proportional to 271,608 and 422,940
Double scale
Find third proportional to 135,806 and 211,473
Similar ratio
Find third proportional to 203,706 and 317,205
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.