Home / 133,779-289,974

Finding the Third Proportional to 133,779 and 289,974

Calculator

Solution

The third proportional to 133,779 and 289,974 is: 628,536.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,779 : 289,974 = 289,974 : x
  2. Step 2: Convert to fraction form
    133,779/289,974 = 289,974/x
  3. Step 3: Cross multiply
    133,779x = 289,974 × 289,974
  4. Step 4: Simplify right side
    133,779x = 84,084,920,676
  5. Step 5: Solve for x
    x = 84,084,920,676/133,779
  6. Step 6: Final answer
    x = 628,536.02

Related Problems

Find third proportional to 66,889.50 and 144,987
Half scale
Find third proportional to 267,558 and 579,948
Double scale
Find third proportional to 133,781 and 289,978
Similar ratio
Find third proportional to 200,668.50 and 434,961
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.