Home / 200,328.75-408,078

Finding the Third Proportional to 200,328.75 and 408,078

Calculator

Solution

The third proportional to 200,328.75 and 408,078 is: 831,271.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,328.75 : 408,078 = 408,078 : x
  2. Step 2: Convert to fraction form
    200,328.75/408,078 = 408,078/x
  3. Step 3: Cross multiply
    200,328.75x = 408,078 × 408,078
  4. Step 4: Simplify right side
    200,328.75x = 166,527,654,084
  5. Step 5: Solve for x
    x = 166,527,654,084/200,328.75
  6. Step 6: Final answer
    x = 831,271.87

Related Problems

Find third proportional to 100,164.38 and 204,039
Half scale
Find third proportional to 400,657.50 and 816,156
Double scale
Find third proportional to 200,331 and 408,082
Similar ratio
Find third proportional to 300,493.13 and 612,117
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.