Home / 129,314-199,683

Finding the Third Proportional to 129,314 and 199,683

Calculator

Solution

The third proportional to 129,314 and 199,683 is: 308,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,314 : 199,683 = 199,683 : x
  2. Step 2: Convert to fraction form
    129,314/199,683 = 199,683/x
  3. Step 3: Cross multiply
    129,314x = 199,683 × 199,683
  4. Step 4: Simplify right side
    129,314x = 39,873,300,489
  5. Step 5: Solve for x
    x = 39,873,300,489/129,314
  6. Step 6: Final answer
    x = 308,344.81

Related Problems

Find third proportional to 64,657 and 99,841.50
Half scale
Find third proportional to 258,628 and 399,366
Double scale
Find third proportional to 129,316 and 199,686
Similar ratio
Find third proportional to 193,971 and 299,524.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.