Home / 143,328-311,532

Finding the Third Proportional to 143,328 and 311,532

Calculator

Solution

The third proportional to 143,328 and 311,532 is: 677,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,328 : 311,532 = 311,532 : x
  2. Step 2: Convert to fraction form
    143,328/311,532 = 311,532/x
  3. Step 3: Cross multiply
    143,328x = 311,532 × 311,532
  4. Step 4: Simplify right side
    143,328x = 97,052,187,024
  5. Step 5: Solve for x
    x = 97,052,187,024/143,328
  6. Step 6: Final answer
    x = 677,133.48

Related Problems

Find third proportional to 71,664 and 155,766
Half scale
Find third proportional to 286,656 and 623,064
Double scale
Find third proportional to 143,330 and 311,536
Similar ratio
Find third proportional to 214,992 and 467,298
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.