Home / 128,936-207,084

Finding the Third Proportional to 128,936 and 207,084

Calculator

Solution

The third proportional to 128,936 and 207,084 is: 332,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,936 : 207,084 = 207,084 : x
  2. Step 2: Convert to fraction form
    128,936/207,084 = 207,084/x
  3. Step 3: Cross multiply
    128,936x = 207,084 × 207,084
  4. Step 4: Simplify right side
    128,936x = 42,883,783,056
  5. Step 5: Solve for x
    x = 42,883,783,056/128,936
  6. Step 6: Final answer
    x = 332,597.44

Related Problems

Find third proportional to 64,468 and 103,542
Half scale
Find third proportional to 257,872 and 414,168
Double scale
Find third proportional to 128,938 and 207,087
Similar ratio
Find third proportional to 193,404 and 310,626
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.