Home / 207,222-321,201

Finding the Third Proportional to 207,222 and 321,201

Calculator

Solution

The third proportional to 207,222 and 321,201 is: 497,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,222 : 321,201 = 321,201 : x
  2. Step 2: Convert to fraction form
    207,222/321,201 = 321,201/x
  3. Step 3: Cross multiply
    207,222x = 321,201 × 321,201
  4. Step 4: Simplify right side
    207,222x = 103,170,082,401
  5. Step 5: Solve for x
    x = 103,170,082,401/207,222
  6. Step 6: Final answer
    x = 497,872.25

Related Problems

Find third proportional to 103,611 and 160,600.50
Half scale
Find third proportional to 414,444 and 642,402
Double scale
Find third proportional to 207,224 and 321,204
Similar ratio
Find third proportional to 310,833 and 481,801.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.