Home / 198,975-308,551

Finding the Third Proportional to 198,975 and 308,551

Calculator

Solution

The third proportional to 198,975 and 308,551 is: 478,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,975 : 308,551 = 308,551 : x
  2. Step 2: Convert to fraction form
    198,975/308,551 = 308,551/x
  3. Step 3: Cross multiply
    198,975x = 308,551 × 308,551
  4. Step 4: Simplify right side
    198,975x = 95,203,719,601
  5. Step 5: Solve for x
    x = 95,203,719,601/198,975
  6. Step 6: Final answer
    x = 478,470.76

Related Problems

Find third proportional to 99,487.50 and 154,275.50
Half scale
Find third proportional to 397,950 and 617,102
Double scale
Find third proportional to 198,977 and 308,554
Similar ratio
Find third proportional to 298,462.50 and 462,826.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.