Home / 213,362-321,703

Finding the Third Proportional to 213,362 and 321,703

Calculator

Solution

The third proportional to 213,362 and 321,703 is: 485,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,362 : 321,703 = 321,703 : x
  2. Step 2: Convert to fraction form
    213,362/321,703 = 321,703/x
  3. Step 3: Cross multiply
    213,362x = 321,703 × 321,703
  4. Step 4: Simplify right side
    213,362x = 103,492,820,209
  5. Step 5: Solve for x
    x = 103,492,820,209/213,362
  6. Step 6: Final answer
    x = 485,057.42

Related Problems

Find third proportional to 106,681 and 160,851.50
Half scale
Find third proportional to 426,724 and 643,406
Double scale
Find third proportional to 213,364 and 321,706
Similar ratio
Find third proportional to 320,043 and 482,554.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.