Home / 115,439-172,698

Finding the Third Proportional to 115,439 and 172,698

Calculator

Solution

The third proportional to 115,439 and 172,698 is: 258,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,439 : 172,698 = 172,698 : x
  2. Step 2: Convert to fraction form
    115,439/172,698 = 172,698/x
  3. Step 3: Cross multiply
    115,439x = 172,698 × 172,698
  4. Step 4: Simplify right side
    115,439x = 29,824,599,204
  5. Step 5: Solve for x
    x = 29,824,599,204/115,439
  6. Step 6: Final answer
    x = 258,358.09

Related Problems

Find third proportional to 57,719.50 and 86,349
Half scale
Find third proportional to 230,878 and 345,396
Double scale
Find third proportional to 115,441 and 172,701
Similar ratio
Find third proportional to 173,158.50 and 259,047
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.