Home / 90,981-197,502

Finding the Third Proportional to 90,981 and 197,502

Calculator

Solution

The third proportional to 90,981 and 197,502 is: 428,738.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,981 : 197,502 = 197,502 : x
  2. Step 2: Convert to fraction form
    90,981/197,502 = 197,502/x
  3. Step 3: Cross multiply
    90,981x = 197,502 × 197,502
  4. Step 4: Simplify right side
    90,981x = 39,007,040,004
  5. Step 5: Solve for x
    x = 39,007,040,004/90,981
  6. Step 6: Final answer
    x = 428,738.31

Related Problems

Find third proportional to 45,490.50 and 98,751
Half scale
Find third proportional to 181,962 and 395,004
Double scale
Find third proportional to 90,983 and 197,506
Similar ratio
Find third proportional to 136,471.50 and 296,253
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.