Home / 100,376-215,242

Finding the Third Proportional to 100,376 and 215,242

Calculator

Solution

The third proportional to 100,376 and 215,242 is: 461,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,376 : 215,242 = 215,242 : x
  2. Step 2: Convert to fraction form
    100,376/215,242 = 215,242/x
  3. Step 3: Cross multiply
    100,376x = 215,242 × 215,242
  4. Step 4: Simplify right side
    100,376x = 46,329,118,564
  5. Step 5: Solve for x
    x = 46,329,118,564/100,376
  6. Step 6: Final answer
    x = 461,555.74

Related Problems

Find third proportional to 50,188 and 107,621
Half scale
Find third proportional to 200,752 and 430,484
Double scale
Find third proportional to 100,378 and 215,246
Similar ratio
Find third proportional to 150,564 and 322,863
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.