Home / 309-462.75

Finding the Third Proportional to 309 and 462.75

Calculator

Solution

The third proportional to 309 and 462.75 is: 693.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    309 : 462.75 = 462.75 : x
  2. Step 2: Convert to fraction form
    309/462.75 = 462.75/x
  3. Step 3: Cross multiply
    309x = 462.75 × 462.75
  4. Step 4: Simplify right side
    309x = 214,137.56
  5. Step 5: Solve for x
    x = 214,137.56/309
  6. Step 6: Final answer
    x = 693.00

Related Problems

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.