Home / 172,080-258,192

Finding the Third Proportional to 172,080 and 258,192

Calculator

Solution

The third proportional to 172,080 and 258,192 is: 387,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,080 : 258,192 = 258,192 : x
  2. Step 2: Convert to fraction form
    172,080/258,192 = 258,192/x
  3. Step 3: Cross multiply
    172,080x = 258,192 × 258,192
  4. Step 4: Simplify right side
    172,080x = 66,663,108,864
  5. Step 5: Solve for x
    x = 66,663,108,864/172,080
  6. Step 6: Final answer
    x = 387,396.03

Related Problems

Find third proportional to 86,040 and 129,096
Half scale
Find third proportional to 344,160 and 516,384
Double scale
Find third proportional to 172,082 and 258,195
Similar ratio
Find third proportional to 258,120 and 387,288
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.