Home / 215,501-324,891

Finding the Third Proportional to 215,501 and 324,891

Calculator

Solution

The third proportional to 215,501 and 324,891 is: 489,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,501 : 324,891 = 324,891 : x
  2. Step 2: Convert to fraction form
    215,501/324,891 = 324,891/x
  3. Step 3: Cross multiply
    215,501x = 324,891 × 324,891
  4. Step 4: Simplify right side
    215,501x = 105,554,161,881
  5. Step 5: Solve for x
    x = 105,554,161,881/215,501
  6. Step 6: Final answer
    x = 489,808.22

Related Problems

Find third proportional to 107,750.50 and 162,445.50
Half scale
Find third proportional to 431,002 and 649,782
Double scale
Find third proportional to 215,503 and 324,894
Similar ratio
Find third proportional to 323,251.50 and 487,336.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.