Home / 80,560-172,778

Finding the Third Proportional to 80,560 and 172,778

Calculator

Solution

The third proportional to 80,560 and 172,778 is: 370,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,560 : 172,778 = 172,778 : x
  2. Step 2: Convert to fraction form
    80,560/172,778 = 172,778/x
  3. Step 3: Cross multiply
    80,560x = 172,778 × 172,778
  4. Step 4: Simplify right side
    80,560x = 29,852,237,284
  5. Step 5: Solve for x
    x = 29,852,237,284/80,560
  6. Step 6: Final answer
    x = 370,559.05

Related Problems

Find third proportional to 40,280 and 86,389
Half scale
Find third proportional to 161,120 and 345,556
Double scale
Find third proportional to 80,562 and 172,782
Similar ratio
Find third proportional to 120,840 and 259,167
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.