Home / 131,972-290,186

Finding the Third Proportional to 131,972 and 290,186

Calculator

Solution

The third proportional to 131,972 and 290,186 is: 638,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,972 : 290,186 = 290,186 : x
  2. Step 2: Convert to fraction form
    131,972/290,186 = 290,186/x
  3. Step 3: Cross multiply
    131,972x = 290,186 × 290,186
  4. Step 4: Simplify right side
    131,972x = 84,207,914,596
  5. Step 5: Solve for x
    x = 84,207,914,596/131,972
  6. Step 6: Final answer
    x = 638,074.10

Related Problems

Find third proportional to 65,986 and 145,093
Half scale
Find third proportional to 263,944 and 580,372
Double scale
Find third proportional to 131,974 and 290,190
Similar ratio
Find third proportional to 197,958 and 435,279
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.