Home / 172,142-369,187

Finding the Third Proportional to 172,142 and 369,187

Calculator

Solution

The third proportional to 172,142 and 369,187 is: 791,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,142 : 369,187 = 369,187 : x
  2. Step 2: Convert to fraction form
    172,142/369,187 = 369,187/x
  3. Step 3: Cross multiply
    172,142x = 369,187 × 369,187
  4. Step 4: Simplify right side
    172,142x = 136,299,040,969
  5. Step 5: Solve for x
    x = 136,299,040,969/172,142
  6. Step 6: Final answer
    x = 791,782.60

Related Problems

Find third proportional to 86,071 and 184,593.50
Half scale
Find third proportional to 344,284 and 738,374
Double scale
Find third proportional to 172,144 and 369,191
Similar ratio
Find third proportional to 258,213 and 553,780.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.