Home / 172,789-270,469

Finding the Third Proportional to 172,789 and 270,469

Calculator

Solution

The third proportional to 172,789 and 270,469 is: 423,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,789 : 270,469 = 270,469 : x
  2. Step 2: Convert to fraction form
    172,789/270,469 = 270,469/x
  3. Step 3: Cross multiply
    172,789x = 270,469 × 270,469
  4. Step 4: Simplify right side
    172,789x = 73,153,479,961
  5. Step 5: Solve for x
    x = 73,153,479,961/172,789
  6. Step 6: Final answer
    x = 423,368.85

Related Problems

Find third proportional to 86,394.50 and 135,234.50
Half scale
Find third proportional to 345,578 and 540,938
Double scale
Find third proportional to 172,791 and 270,472
Similar ratio
Find third proportional to 259,183.50 and 405,703.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.