Home / 311,082-440,103

Finding the Third Proportional to 311,082 and 440,103

Calculator

Solution

The third proportional to 311,082 and 440,103 is: 622,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,082 : 440,103 = 440,103 : x
  2. Step 2: Convert to fraction form
    311,082/440,103 = 440,103/x
  3. Step 3: Cross multiply
    311,082x = 440,103 × 440,103
  4. Step 4: Simplify right side
    311,082x = 193,690,650,609
  5. Step 5: Solve for x
    x = 193,690,650,609/311,082
  6. Step 6: Final answer
    x = 622,635.35

Related Problems

Find third proportional to 155,541 and 220,051.50
Half scale
Find third proportional to 622,164 and 880,206
Double scale
Find third proportional to 311,084 and 440,106
Similar ratio
Find third proportional to 466,623 and 660,154.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.