Home / 120,512-187,212

Finding the Third Proportional to 120,512 and 187,212

Calculator

Solution

The third proportional to 120,512 and 187,212 is: 290,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,512 : 187,212 = 187,212 : x
  2. Step 2: Convert to fraction form
    120,512/187,212 = 187,212/x
  3. Step 3: Cross multiply
    120,512x = 187,212 × 187,212
  4. Step 4: Simplify right side
    120,512x = 35,048,332,944
  5. Step 5: Solve for x
    x = 35,048,332,944/120,512
  6. Step 6: Final answer
    x = 290,828.57

Related Problems

Find third proportional to 60,256 and 93,606
Half scale
Find third proportional to 241,024 and 374,424
Double scale
Find third proportional to 120,514 and 187,215
Similar ratio
Find third proportional to 180,768 and 280,818
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.