Home / 115,280-172,918

Finding the Third Proportional to 115,280 and 172,918

Calculator

Solution

The third proportional to 115,280 and 172,918 is: 259,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,280 : 172,918 = 172,918 : x
  2. Step 2: Convert to fraction form
    115,280/172,918 = 172,918/x
  3. Step 3: Cross multiply
    115,280x = 172,918 × 172,918
  4. Step 4: Simplify right side
    115,280x = 29,900,634,724
  5. Step 5: Solve for x
    x = 29,900,634,724/115,280
  6. Step 6: Final answer
    x = 259,374.00

Related Problems

Find third proportional to 57,640 and 86,459
Half scale
Find third proportional to 230,560 and 345,836
Double scale
Find third proportional to 115,282 and 172,921
Similar ratio
Find third proportional to 172,920 and 259,377
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.