Home / 128,616-266,934

Finding the Third Proportional to 128,616 and 266,934

Calculator

Solution

The third proportional to 128,616 and 266,934 is: 554,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,616 : 266,934 = 266,934 : x
  2. Step 2: Convert to fraction form
    128,616/266,934 = 266,934/x
  3. Step 3: Cross multiply
    128,616x = 266,934 × 266,934
  4. Step 4: Simplify right side
    128,616x = 71,253,760,356
  5. Step 5: Solve for x
    x = 71,253,760,356/128,616
  6. Step 6: Final answer
    x = 554,003.86

Related Problems

Find third proportional to 64,308 and 133,467
Half scale
Find third proportional to 257,232 and 533,868
Double scale
Find third proportional to 128,618 and 266,938
Similar ratio
Find third proportional to 192,924 and 400,401
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.