Home / 129,056-199,408

Finding the Third Proportional to 129,056 and 199,408

Calculator

Solution

The third proportional to 129,056 and 199,408 is: 308,110.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,056 : 199,408 = 199,408 : x
  2. Step 2: Convert to fraction form
    129,056/199,408 = 199,408/x
  3. Step 3: Cross multiply
    129,056x = 199,408 × 199,408
  4. Step 4: Simplify right side
    129,056x = 39,763,550,464
  5. Step 5: Solve for x
    x = 39,763,550,464/129,056
  6. Step 6: Final answer
    x = 308,110.82

Related Problems

Find third proportional to 64,528 and 99,704
Half scale
Find third proportional to 258,112 and 398,816
Double scale
Find third proportional to 129,058 and 199,411
Similar ratio
Find third proportional to 193,584 and 299,112
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.