Home / 129,830-283,692

Finding the Third Proportional to 129,830 and 283,692

Calculator

Solution

The third proportional to 129,830 and 283,692 is: 619,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,830 : 283,692 = 283,692 : x
  2. Step 2: Convert to fraction form
    129,830/283,692 = 283,692/x
  3. Step 3: Cross multiply
    129,830x = 283,692 × 283,692
  4. Step 4: Simplify right side
    129,830x = 80,481,150,864
  5. Step 5: Solve for x
    x = 80,481,150,864/129,830
  6. Step 6: Final answer
    x = 619,896.41

Related Problems

Find third proportional to 64,915 and 141,846
Half scale
Find third proportional to 259,660 and 567,384
Double scale
Find third proportional to 129,832 and 283,696
Similar ratio
Find third proportional to 194,745 and 425,538
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.