Home / 120,788-180,894

Finding the Third Proportional to 120,788 and 180,894

Calculator

Solution

The third proportional to 120,788 and 180,894 is: 270,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,788 : 180,894 = 180,894 : x
  2. Step 2: Convert to fraction form
    120,788/180,894 = 180,894/x
  3. Step 3: Cross multiply
    120,788x = 180,894 × 180,894
  4. Step 4: Simplify right side
    120,788x = 32,722,639,236
  5. Step 5: Solve for x
    x = 32,722,639,236/120,788
  6. Step 6: Final answer
    x = 270,909.69

Related Problems

Find third proportional to 60,394 and 90,447
Half scale
Find third proportional to 241,576 and 361,788
Double scale
Find third proportional to 120,790 and 180,897
Similar ratio
Find third proportional to 181,182 and 271,341
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.