Home / 121,276-261,910

Finding the Third Proportional to 121,276 and 261,910

Calculator

Solution

The third proportional to 121,276 and 261,910 is: 565,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,276 : 261,910 = 261,910 : x
  2. Step 2: Convert to fraction form
    121,276/261,910 = 261,910/x
  3. Step 3: Cross multiply
    121,276x = 261,910 × 261,910
  4. Step 4: Simplify right side
    121,276x = 68,596,848,100
  5. Step 5: Solve for x
    x = 68,596,848,100/121,276
  6. Step 6: Final answer
    x = 565,625.91

Related Problems

Find third proportional to 60,638 and 130,955
Half scale
Find third proportional to 242,552 and 523,820
Double scale
Find third proportional to 121,278 and 261,914
Similar ratio
Find third proportional to 181,914 and 392,865
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.