Home / 121,705-267,385

Finding the Third Proportional to 121,705 and 267,385

Calculator

Solution

The third proportional to 121,705 and 267,385 is: 587,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,705 : 267,385 = 267,385 : x
  2. Step 2: Convert to fraction form
    121,705/267,385 = 267,385/x
  3. Step 3: Cross multiply
    121,705x = 267,385 × 267,385
  4. Step 4: Simplify right side
    121,705x = 71,494,738,225
  5. Step 5: Solve for x
    x = 71,494,738,225/121,705
  6. Step 6: Final answer
    x = 587,442.90

Related Problems

Find third proportional to 60,852.50 and 133,692.50
Half scale
Find third proportional to 243,410 and 534,770
Double scale
Find third proportional to 121,707 and 267,389
Similar ratio
Find third proportional to 182,557.50 and 401,077.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.