Home / 129,036-202,770

Finding the Third Proportional to 129,036 and 202,770

Calculator

Solution

The third proportional to 129,036 and 202,770 is: 318,637.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,036 : 202,770 = 202,770 : x
  2. Step 2: Convert to fraction form
    129,036/202,770 = 202,770/x
  3. Step 3: Cross multiply
    129,036x = 202,770 × 202,770
  4. Step 4: Simplify right side
    129,036x = 41,115,672,900
  5. Step 5: Solve for x
    x = 41,115,672,900/129,036
  6. Step 6: Final answer
    x = 318,637.22

Related Problems

Find third proportional to 64,518 and 101,385
Half scale
Find third proportional to 258,072 and 405,540
Double scale
Find third proportional to 129,038 and 202,773
Similar ratio
Find third proportional to 193,554 and 304,155
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.