Home / 200,328-311,976

Finding the Third Proportional to 200,328 and 311,976

Calculator

Solution

The third proportional to 200,328 and 311,976 is: 485,848.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,328 : 311,976 = 311,976 : x
  2. Step 2: Convert to fraction form
    200,328/311,976 = 311,976/x
  3. Step 3: Cross multiply
    200,328x = 311,976 × 311,976
  4. Step 4: Simplify right side
    200,328x = 97,329,024,576
  5. Step 5: Solve for x
    x = 97,329,024,576/200,328
  6. Step 6: Final answer
    x = 485,848.33

Related Problems

Find third proportional to 100,164 and 155,988
Half scale
Find third proportional to 400,656 and 623,952
Double scale
Find third proportional to 200,330 and 311,979
Similar ratio
Find third proportional to 300,492 and 467,964
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.