Home / 79,380-172,935

Finding the Third Proportional to 79,380 and 172,935

Calculator

Solution

The third proportional to 79,380 and 172,935 is: 376,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,380 : 172,935 = 172,935 : x
  2. Step 2: Convert to fraction form
    79,380/172,935 = 172,935/x
  3. Step 3: Cross multiply
    79,380x = 172,935 × 172,935
  4. Step 4: Simplify right side
    79,380x = 29,906,514,225
  5. Step 5: Solve for x
    x = 29,906,514,225/79,380
  6. Step 6: Final answer
    x = 376,751.25

Related Problems

Find third proportional to 39,690 and 86,467.50
Half scale
Find third proportional to 158,760 and 345,870
Double scale
Find third proportional to 79,382 and 172,939
Similar ratio
Find third proportional to 119,070 and 259,402.50
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.