Home / 129,768-278,933

Finding the Third Proportional to 129,768 and 278,933

Calculator

Solution

The third proportional to 129,768 and 278,933 is: 599,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,768 : 278,933 = 278,933 : x
  2. Step 2: Convert to fraction form
    129,768/278,933 = 278,933/x
  3. Step 3: Cross multiply
    129,768x = 278,933 × 278,933
  4. Step 4: Simplify right side
    129,768x = 77,803,618,489
  5. Step 5: Solve for x
    x = 77,803,618,489/129,768
  6. Step 6: Final answer
    x = 599,559.36

Related Problems

Find third proportional to 64,884 and 139,466.50
Half scale
Find third proportional to 259,536 and 557,866
Double scale
Find third proportional to 129,770 and 278,937
Similar ratio
Find third proportional to 194,652 and 418,399.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.