Home / 207,350-311,815

Finding the Third Proportional to 207,350 and 311,815

Calculator

Solution

The third proportional to 207,350 and 311,815 is: 468,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,350 : 311,815 = 311,815 : x
  2. Step 2: Convert to fraction form
    207,350/311,815 = 311,815/x
  3. Step 3: Cross multiply
    207,350x = 311,815 × 311,815
  4. Step 4: Simplify right side
    207,350x = 97,228,594,225
  5. Step 5: Solve for x
    x = 97,228,594,225/207,350
  6. Step 6: Final answer
    x = 468,910.51

Related Problems

Find third proportional to 103,675 and 155,907.50
Half scale
Find third proportional to 414,700 and 623,630
Double scale
Find third proportional to 207,352 and 311,818
Similar ratio
Find third proportional to 311,025 and 467,722.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.