Home / 138,604-214,530

Finding the Third Proportional to 138,604 and 214,530

Calculator

Solution

The third proportional to 138,604 and 214,530 is: 332,047.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,604 : 214,530 = 214,530 : x
  2. Step 2: Convert to fraction form
    138,604/214,530 = 214,530/x
  3. Step 3: Cross multiply
    138,604x = 214,530 × 214,530
  4. Step 4: Simplify right side
    138,604x = 46,023,120,900
  5. Step 5: Solve for x
    x = 46,023,120,900/138,604
  6. Step 6: Final answer
    x = 332,047.57

Related Problems

Find third proportional to 69,302 and 107,265
Half scale
Find third proportional to 277,208 and 429,060
Double scale
Find third proportional to 138,606 and 214,533
Similar ratio
Find third proportional to 207,906 and 321,795
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.