Home / 137,630-210,393

Finding the Third Proportional to 137,630 and 210,393

Calculator

Solution

The third proportional to 137,630 and 210,393 is: 321,624.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,630 : 210,393 = 210,393 : x
  2. Step 2: Convert to fraction form
    137,630/210,393 = 210,393/x
  3. Step 3: Cross multiply
    137,630x = 210,393 × 210,393
  4. Step 4: Simplify right side
    137,630x = 44,265,214,449
  5. Step 5: Solve for x
    x = 44,265,214,449/137,630
  6. Step 6: Final answer
    x = 321,624.75

Related Problems

Find third proportional to 68,815 and 105,196.50
Half scale
Find third proportional to 275,260 and 420,786
Double scale
Find third proportional to 137,632 and 210,396
Similar ratio
Find third proportional to 206,445 and 315,589.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.