Home / 142,813-313,656

Finding the Third Proportional to 142,813 and 313,656

Calculator

Solution

The third proportional to 142,813 and 313,656 is: 688,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,813 : 313,656 = 313,656 : x
  2. Step 2: Convert to fraction form
    142,813/313,656 = 313,656/x
  3. Step 3: Cross multiply
    142,813x = 313,656 × 313,656
  4. Step 4: Simplify right side
    142,813x = 98,380,086,336
  5. Step 5: Solve for x
    x = 98,380,086,336/142,813
  6. Step 6: Final answer
    x = 688,873.47

Related Problems

Find third proportional to 71,406.50 and 156,828
Half scale
Find third proportional to 285,626 and 627,312
Double scale
Find third proportional to 142,815 and 313,660
Similar ratio
Find third proportional to 214,219.50 and 470,484
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.