Home / 272,486-411,186

Finding the Third Proportional to 272,486 and 411,186

Calculator

Solution

The third proportional to 272,486 and 411,186 is: 620,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,486 : 411,186 = 411,186 : x
  2. Step 2: Convert to fraction form
    272,486/411,186 = 411,186/x
  3. Step 3: Cross multiply
    272,486x = 411,186 × 411,186
  4. Step 4: Simplify right side
    272,486x = 169,073,926,596
  5. Step 5: Solve for x
    x = 169,073,926,596/272,486
  6. Step 6: Final answer
    x = 620,486.65

Related Problems

Find third proportional to 136,243 and 205,593
Half scale
Find third proportional to 544,972 and 822,372
Double scale
Find third proportional to 272,488 and 411,189
Similar ratio
Find third proportional to 408,729 and 616,779
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.