Home / 100,128-217,752

Finding the Third Proportional to 100,128 and 217,752

Calculator

Solution

The third proportional to 100,128 and 217,752 is: 473,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,128 : 217,752 = 217,752 : x
  2. Step 2: Convert to fraction form
    100,128/217,752 = 217,752/x
  3. Step 3: Cross multiply
    100,128x = 217,752 × 217,752
  4. Step 4: Simplify right side
    100,128x = 47,415,933,504
  5. Step 5: Solve for x
    x = 47,415,933,504/100,128
  6. Step 6: Final answer
    x = 473,553.19

Related Problems

Find third proportional to 50,064 and 108,876
Half scale
Find third proportional to 200,256 and 435,504
Double scale
Find third proportional to 100,130 and 217,756
Similar ratio
Find third proportional to 150,192 and 326,628
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.