Home / 143,436-313,944

Finding the Third Proportional to 143,436 and 313,944

Calculator

Solution

The third proportional to 143,436 and 313,944 is: 687,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,436 : 313,944 = 313,944 : x
  2. Step 2: Convert to fraction form
    143,436/313,944 = 313,944/x
  3. Step 3: Cross multiply
    143,436x = 313,944 × 313,944
  4. Step 4: Simplify right side
    143,436x = 98,560,835,136
  5. Step 5: Solve for x
    x = 98,560,835,136/143,436
  6. Step 6: Final answer
    x = 687,141.55

Related Problems

Find third proportional to 71,718 and 156,972
Half scale
Find third proportional to 286,872 and 627,888
Double scale
Find third proportional to 143,438 and 313,948
Similar ratio
Find third proportional to 215,154 and 470,916
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.