Home / 221,623.50-489,903

Finding the Third Proportional to 221,623.50 and 489,903

Calculator

Solution

The third proportional to 221,623.50 and 489,903 is: 1,082,939.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,623.50 : 489,903 = 489,903 : x
  2. Step 2: Convert to fraction form
    221,623.50/489,903 = 489,903/x
  3. Step 3: Cross multiply
    221,623.50x = 489,903 × 489,903
  4. Step 4: Simplify right side
    221,623.50x = 240,004,949,409
  5. Step 5: Solve for x
    x = 240,004,949,409/221,623.50
  6. Step 6: Final answer
    x = 1,082,939.98

Related Problems

Find third proportional to 110,811.75 and 244,951.50
Half scale
Find third proportional to 443,247 and 979,806
Double scale
Find third proportional to 221,626 and 489,907
Similar ratio
Find third proportional to 332,435.25 and 734,854.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.