Home / 99,508-217,916

Finding the Third Proportional to 99,508 and 217,916

Calculator

Solution

The third proportional to 99,508 and 217,916 is: 477,221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,508 : 217,916 = 217,916 : x
  2. Step 2: Convert to fraction form
    99,508/217,916 = 217,916/x
  3. Step 3: Cross multiply
    99,508x = 217,916 × 217,916
  4. Step 4: Simplify right side
    99,508x = 47,487,383,056
  5. Step 5: Solve for x
    x = 47,487,383,056/99,508
  6. Step 6: Final answer
    x = 477,221.76

Related Problems

Find third proportional to 49,754 and 108,958
Half scale
Find third proportional to 199,016 and 435,832
Double scale
Find third proportional to 99,510 and 217,920
Similar ratio
Find third proportional to 149,262 and 326,874
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.