Home / 142,578-220,743

Finding the Third Proportional to 142,578 and 220,743

Calculator

Solution

The third proportional to 142,578 and 220,743 is: 341,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,578 : 220,743 = 220,743 : x
  2. Step 2: Convert to fraction form
    142,578/220,743 = 220,743/x
  3. Step 3: Cross multiply
    142,578x = 220,743 × 220,743
  4. Step 4: Simplify right side
    142,578x = 48,727,472,049
  5. Step 5: Solve for x
    x = 48,727,472,049/142,578
  6. Step 6: Final answer
    x = 341,760.10

Related Problems

Find third proportional to 71,289 and 110,371.50
Half scale
Find third proportional to 285,156 and 441,486
Double scale
Find third proportional to 142,580 and 220,746
Similar ratio
Find third proportional to 213,867 and 331,114.50
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.