Home / 128,794-189,466

Finding the Third Proportional to 128,794 and 189,466

Calculator

Solution

The third proportional to 128,794 and 189,466 is: 278,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,794 : 189,466 = 189,466 : x
  2. Step 2: Convert to fraction form
    128,794/189,466 = 189,466/x
  3. Step 3: Cross multiply
    128,794x = 189,466 × 189,466
  4. Step 4: Simplify right side
    128,794x = 35,897,365,156
  5. Step 5: Solve for x
    x = 35,897,365,156/128,794
  6. Step 6: Final answer
    x = 278,719.24

Related Problems

Find third proportional to 64,397 and 94,733
Half scale
Find third proportional to 257,588 and 378,932
Double scale
Find third proportional to 128,796 and 189,469
Similar ratio
Find third proportional to 193,191 and 284,199
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.