Home / 142,862-311,122

Finding the Third Proportional to 142,862 and 311,122

Calculator

Solution

The third proportional to 142,862 and 311,122 is: 677,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,862 : 311,122 = 311,122 : x
  2. Step 2: Convert to fraction form
    142,862/311,122 = 311,122/x
  3. Step 3: Cross multiply
    142,862x = 311,122 × 311,122
  4. Step 4: Simplify right side
    142,862x = 96,796,898,884
  5. Step 5: Solve for x
    x = 96,796,898,884/142,862
  6. Step 6: Final answer
    x = 677,555.26

Related Problems

Find third proportional to 71,431 and 155,561
Half scale
Find third proportional to 285,724 and 622,244
Double scale
Find third proportional to 142,864 and 311,126
Similar ratio
Find third proportional to 214,293 and 466,683
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.