Home / 100,969-221,521

Finding the Third Proportional to 100,969 and 221,521

Calculator

Solution

The third proportional to 100,969 and 221,521 is: 486,006.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,969 : 221,521 = 221,521 : x
  2. Step 2: Convert to fraction form
    100,969/221,521 = 221,521/x
  3. Step 3: Cross multiply
    100,969x = 221,521 × 221,521
  4. Step 4: Simplify right side
    100,969x = 49,071,553,441
  5. Step 5: Solve for x
    x = 49,071,553,441/100,969
  6. Step 6: Final answer
    x = 486,006.13

Related Problems

Find third proportional to 50,484.50 and 110,760.50
Half scale
Find third proportional to 201,938 and 443,042
Double scale
Find third proportional to 100,971 and 221,525
Similar ratio
Find third proportional to 151,453.50 and 332,281.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.