Home / 79,317-172,836

Finding the Third Proportional to 79,317 and 172,836

Calculator

Solution

The third proportional to 79,317 and 172,836 is: 376,618.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,317 : 172,836 = 172,836 : x
  2. Step 2: Convert to fraction form
    79,317/172,836 = 172,836/x
  3. Step 3: Cross multiply
    79,317x = 172,836 × 172,836
  4. Step 4: Simplify right side
    79,317x = 29,872,282,896
  5. Step 5: Solve for x
    x = 29,872,282,896/79,317
  6. Step 6: Final answer
    x = 376,618.92

Related Problems

Find third proportional to 39,658.50 and 86,418
Half scale
Find third proportional to 158,634 and 345,672
Double scale
Find third proportional to 79,319 and 172,840
Similar ratio
Find third proportional to 118,975.50 and 259,254
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.