Home / 128,786-197,006

Finding the Third Proportional to 128,786 and 197,006

Calculator

Solution

The third proportional to 128,786 and 197,006 is: 301,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,786 : 197,006 = 197,006 : x
  2. Step 2: Convert to fraction form
    128,786/197,006 = 197,006/x
  3. Step 3: Cross multiply
    128,786x = 197,006 × 197,006
  4. Step 4: Simplify right side
    128,786x = 38,811,364,036
  5. Step 5: Solve for x
    x = 38,811,364,036/128,786
  6. Step 6: Final answer
    x = 301,363.22

Related Problems

Find third proportional to 64,393 and 98,503
Half scale
Find third proportional to 257,572 and 394,012
Double scale
Find third proportional to 128,788 and 197,009
Similar ratio
Find third proportional to 193,179 and 295,509
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.