Home / 206,064-439,128

Finding the Third Proportional to 206,064 and 439,128

Calculator

Solution

The third proportional to 206,064 and 439,128 is: 935,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,064 : 439,128 = 439,128 : x
  2. Step 2: Convert to fraction form
    206,064/439,128 = 439,128/x
  3. Step 3: Cross multiply
    206,064x = 439,128 × 439,128
  4. Step 4: Simplify right side
    206,064x = 192,833,400,384
  5. Step 5: Solve for x
    x = 192,833,400,384/206,064
  6. Step 6: Final answer
    x = 935,793.74

Related Problems

Find third proportional to 103,032 and 219,564
Half scale
Find third proportional to 412,128 and 878,256
Double scale
Find third proportional to 206,066 and 439,132
Similar ratio
Find third proportional to 309,096 and 658,692
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.