Home / 128,416-274,336

Finding the Third Proportional to 128,416 and 274,336

Calculator

Solution

The third proportional to 128,416 and 274,336 is: 586,065.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,416 : 274,336 = 274,336 : x
  2. Step 2: Convert to fraction form
    128,416/274,336 = 274,336/x
  3. Step 3: Cross multiply
    128,416x = 274,336 × 274,336
  4. Step 4: Simplify right side
    128,416x = 75,260,240,896
  5. Step 5: Solve for x
    x = 75,260,240,896/128,416
  6. Step 6: Final answer
    x = 586,065.92

Related Problems

Find third proportional to 64,208 and 137,168
Half scale
Find third proportional to 256,832 and 548,672
Double scale
Find third proportional to 128,418 and 274,340
Similar ratio
Find third proportional to 192,624 and 411,504
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.