Home / 172,959-379,971

Finding the Third Proportional to 172,959 and 379,971

Calculator

Solution

The third proportional to 172,959 and 379,971 is: 834,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,959 : 379,971 = 379,971 : x
  2. Step 2: Convert to fraction form
    172,959/379,971 = 379,971/x
  3. Step 3: Cross multiply
    172,959x = 379,971 × 379,971
  4. Step 4: Simplify right side
    172,959x = 144,377,960,841
  5. Step 5: Solve for x
    x = 144,377,960,841/172,959
  6. Step 6: Final answer
    x = 834,752.52

Related Problems

Find third proportional to 86,479.50 and 189,985.50
Half scale
Find third proportional to 345,918 and 759,942
Double scale
Find third proportional to 172,961 and 379,975
Similar ratio
Find third proportional to 259,438.50 and 569,956.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.