Home / 414.65-622.15-209.28

Finding the Fourth Proportional to 414.65, 622.15 and 209.28

Calculator

Solution

The fourth proportional to 414.65, 622.15 and 209.28 is: 314.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.65 : 622.15 = 209.28 : x
  2. Step 2: Convert to fraction form
    414.65/622.15 = 209.28/x
  3. Step 3: Cross multiply
    414.65x = 622.15 × 209.28
  4. Step 4: Simplify right side
    414.65x = 130,202.51
  5. Step 5: Solve for x
    x = 130,202.51/414.65
  6. Step 6: Final answer
    x = 314.01

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.