Home / 204,939-420,082.50

Finding the Third Proportional to 204,939 and 420,082.50

Calculator

Solution

The third proportional to 204,939 and 420,082.50 is: 861,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,939 : 420,082.50 = 420,082.50 : x
  2. Step 2: Convert to fraction form
    204,939/420,082.50 = 420,082.50/x
  3. Step 3: Cross multiply
    204,939x = 420,082.50 × 420,082.50
  4. Step 4: Simplify right side
    204,939x = 176,469,306,806.25
  5. Step 5: Solve for x
    x = 176,469,306,806.25/204,939
  6. Step 6: Final answer
    x = 861,082.11

Related Problems

Find third proportional to 102,469.50 and 210,041.25
Half scale
Find third proportional to 409,878 and 840,165
Double scale
Find third proportional to 204,941 and 420,087
Similar ratio
Find third proportional to 307,408.50 and 630,123.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.