Home / 142,736-313,716

Finding the Third Proportional to 142,736 and 313,716

Calculator

Solution

The third proportional to 142,736 and 313,716 is: 689,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,736 : 313,716 = 313,716 : x
  2. Step 2: Convert to fraction form
    142,736/313,716 = 313,716/x
  3. Step 3: Cross multiply
    142,736x = 313,716 × 313,716
  4. Step 4: Simplify right side
    142,736x = 98,417,728,656
  5. Step 5: Solve for x
    x = 98,417,728,656/142,736
  6. Step 6: Final answer
    x = 689,508.80

Related Problems

Find third proportional to 71,368 and 156,858
Half scale
Find third proportional to 285,472 and 627,432
Double scale
Find third proportional to 142,738 and 313,720
Similar ratio
Find third proportional to 214,104 and 470,574
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.