Home / 99,178-218,474

Finding the Third Proportional to 99,178 and 218,474

Calculator

Solution

The third proportional to 99,178 and 218,474 is: 481,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178 : 218,474 = 218,474 : x
  2. Step 2: Convert to fraction form
    99,178/218,474 = 218,474/x
  3. Step 3: Cross multiply
    99,178x = 218,474 × 218,474
  4. Step 4: Simplify right side
    99,178x = 47,730,888,676
  5. Step 5: Solve for x
    x = 47,730,888,676/99,178
  6. Step 6: Final answer
    x = 481,264.88

Related Problems

Find third proportional to 49,589 and 109,237
Half scale
Find third proportional to 198,356 and 436,948
Double scale
Find third proportional to 99,180 and 218,478
Similar ratio
Find third proportional to 148,767 and 327,711
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.