Home / 129,764-279,778

Finding the Third Proportional to 129,764 and 279,778

Calculator

Solution

The third proportional to 129,764 and 279,778 is: 603,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,764 : 279,778 = 279,778 : x
  2. Step 2: Convert to fraction form
    129,764/279,778 = 279,778/x
  3. Step 3: Cross multiply
    129,764x = 279,778 × 279,778
  4. Step 4: Simplify right side
    129,764x = 78,275,729,284
  5. Step 5: Solve for x
    x = 78,275,729,284/129,764
  6. Step 6: Final answer
    x = 603,216.06

Related Problems

Find third proportional to 64,882 and 139,889
Half scale
Find third proportional to 259,528 and 559,556
Double scale
Find third proportional to 129,766 and 279,782
Similar ratio
Find third proportional to 194,646 and 419,667
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.