Home / 129,600-203,040

Finding the Third Proportional to 129,600 and 203,040

Calculator

Solution

The third proportional to 129,600 and 203,040 is: 318,096

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,600 : 203,040 = 203,040 : x
  2. Step 2: Convert to fraction form
    129,600/203,040 = 203,040/x
  3. Step 3: Cross multiply
    129,600x = 203,040 × 203,040
  4. Step 4: Simplify right side
    129,600x = 41,225,241,600
  5. Step 5: Solve for x
    x = 41,225,241,600/129,600
  6. Step 6: Final answer
    x = 318,096

Related Problems

Find third proportional to 64,800 and 101,520
Half scale
Find third proportional to 259,200 and 406,080
Double scale
Find third proportional to 129,602 and 203,043
Similar ratio
Find third proportional to 194,400 and 304,560
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.