Home / 221,518-520,063

Finding the Third Proportional to 221,518 and 520,063

Calculator

Solution

The third proportional to 221,518 and 520,063 is: 1,220,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,518 : 520,063 = 520,063 : x
  2. Step 2: Convert to fraction form
    221,518/520,063 = 520,063/x
  3. Step 3: Cross multiply
    221,518x = 520,063 × 520,063
  4. Step 4: Simplify right side
    221,518x = 270,465,523,969
  5. Step 5: Solve for x
    x = 270,465,523,969/221,518
  6. Step 6: Final answer
    x = 1,220,964.09

Related Problems

Find third proportional to 110,759 and 260,031.50
Half scale
Find third proportional to 443,036 and 1,040,126
Double scale
Find third proportional to 221,520 and 520,068
Similar ratio
Find third proportional to 332,277 and 780,094.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.