Home / 120,320-261,872

Finding the Third Proportional to 120,320 and 261,872

Calculator

Solution

The third proportional to 120,320 and 261,872 is: 569,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,320 : 261,872 = 261,872 : x
  2. Step 2: Convert to fraction form
    120,320/261,872 = 261,872/x
  3. Step 3: Cross multiply
    120,320x = 261,872 × 261,872
  4. Step 4: Simplify right side
    120,320x = 68,576,944,384
  5. Step 5: Solve for x
    x = 68,576,944,384/120,320
  6. Step 6: Final answer
    x = 569,954.66

Related Problems

Find third proportional to 60,160 and 130,936
Half scale
Find third proportional to 240,640 and 523,744
Double scale
Find third proportional to 120,322 and 261,876
Similar ratio
Find third proportional to 180,480 and 392,808
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.