Home / 414.50-621.34-170.69

Finding the Fourth Proportional to 414.50, 621.34 and 170.69

Calculator

Solution

The fourth proportional to 414.50, 621.34 and 170.69 is: 255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.50 : 621.34 = 170.69 : x
  2. Step 2: Convert to fraction form
    414.50/621.34 = 170.69/x
  3. Step 3: Cross multiply
    414.50x = 621.34 × 170.69
  4. Step 4: Simplify right side
    414.50x = 106,052.99
  5. Step 5: Solve for x
    x = 106,052.99/414.50
  6. Step 6: Final answer
    x = 255.86

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.