Home / 142,758-313,764

Finding the Third Proportional to 142,758 and 313,764

Calculator

Solution

The third proportional to 142,758 and 313,764 is: 689,613.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,758 : 313,764 = 313,764 : x
  2. Step 2: Convert to fraction form
    142,758/313,764 = 313,764/x
  3. Step 3: Cross multiply
    142,758x = 313,764 × 313,764
  4. Step 4: Simplify right side
    142,758x = 98,447,847,696
  5. Step 5: Solve for x
    x = 98,447,847,696/142,758
  6. Step 6: Final answer
    x = 689,613.53

Related Problems

Find third proportional to 71,379 and 156,882
Half scale
Find third proportional to 285,516 and 627,528
Double scale
Find third proportional to 142,760 and 313,768
Similar ratio
Find third proportional to 214,137 and 470,646
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.