Home / 142,658-220,782

Finding the Third Proportional to 142,658 and 220,782

Calculator

Solution

The third proportional to 142,658 and 220,782 is: 341,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,658 : 220,782 = 220,782 : x
  2. Step 2: Convert to fraction form
    142,658/220,782 = 220,782/x
  3. Step 3: Cross multiply
    142,658x = 220,782 × 220,782
  4. Step 4: Simplify right side
    142,658x = 48,744,691,524
  5. Step 5: Solve for x
    x = 48,744,691,524/142,658
  6. Step 6: Final answer
    x = 341,689.16

Related Problems

Find third proportional to 71,329 and 110,391
Half scale
Find third proportional to 285,316 and 441,564
Double scale
Find third proportional to 142,660 and 220,785
Similar ratio
Find third proportional to 213,987 and 331,173
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.