Home / 129,960-283,408

Finding the Third Proportional to 129,960 and 283,408

Calculator

Solution

The third proportional to 129,960 and 283,408 is: 618,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,960 : 283,408 = 283,408 : x
  2. Step 2: Convert to fraction form
    129,960/283,408 = 283,408/x
  3. Step 3: Cross multiply
    129,960x = 283,408 × 283,408
  4. Step 4: Simplify right side
    129,960x = 80,320,094,464
  5. Step 5: Solve for x
    x = 80,320,094,464/129,960
  6. Step 6: Final answer
    x = 618,037.05

Related Problems

Find third proportional to 64,980 and 141,704
Half scale
Find third proportional to 259,920 and 566,816
Double scale
Find third proportional to 129,962 and 283,412
Similar ratio
Find third proportional to 194,940 and 425,112
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.