Home / 121,472-261,397

Finding the Third Proportional to 121,472 and 261,397

Calculator

Solution

The third proportional to 121,472 and 261,397 is: 562,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,472 : 261,397 = 261,397 : x
  2. Step 2: Convert to fraction form
    121,472/261,397 = 261,397/x
  3. Step 3: Cross multiply
    121,472x = 261,397 × 261,397
  4. Step 4: Simplify right side
    121,472x = 68,328,391,609
  5. Step 5: Solve for x
    x = 68,328,391,609/121,472
  6. Step 6: Final answer
    x = 562,503.22

Related Problems

Find third proportional to 60,736 and 130,698.50
Half scale
Find third proportional to 242,944 and 522,794
Double scale
Find third proportional to 121,474 and 261,401
Similar ratio
Find third proportional to 182,208 and 392,095.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.