Home / 102,128-218,284

Finding the Third Proportional to 102,128 and 218,284

Calculator

Solution

The third proportional to 102,128 and 218,284 is: 466,550.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,128 : 218,284 = 218,284 : x
  2. Step 2: Convert to fraction form
    102,128/218,284 = 218,284/x
  3. Step 3: Cross multiply
    102,128x = 218,284 × 218,284
  4. Step 4: Simplify right side
    102,128x = 47,647,904,656
  5. Step 5: Solve for x
    x = 47,647,904,656/102,128
  6. Step 6: Final answer
    x = 466,550.84

Related Problems

Find third proportional to 51,064 and 109,142
Half scale
Find third proportional to 204,256 and 436,568
Double scale
Find third proportional to 102,130 and 218,288
Similar ratio
Find third proportional to 153,192 and 327,426
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.