Home / 266,800-406,976

Finding the Third Proportional to 266,800 and 406,976

Calculator

Solution

The third proportional to 266,800 and 406,976 is: 620,800.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,800 : 406,976 = 406,976 : x
  2. Step 2: Convert to fraction form
    266,800/406,976 = 406,976/x
  3. Step 3: Cross multiply
    266,800x = 406,976 × 406,976
  4. Step 4: Simplify right side
    266,800x = 165,629,464,576
  5. Step 5: Solve for x
    x = 165,629,464,576/266,800
  6. Step 6: Final answer
    x = 620,800.09

Related Problems

Find third proportional to 133,400 and 203,488
Half scale
Find third proportional to 533,600 and 813,952
Double scale
Find third proportional to 266,802 and 406,979
Similar ratio
Find third proportional to 400,200 and 610,464
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.