Home / 515.97-712.08-329.49

Finding the Fourth Proportional to 515.97, 712.08 and 329.49

Calculator

Solution

The fourth proportional to 515.97, 712.08 and 329.49 is: 454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.97 : 712.08 = 329.49 : x
  2. Step 2: Convert to fraction form
    515.97/712.08 = 329.49/x
  3. Step 3: Cross multiply
    515.97x = 712.08 × 329.49
  4. Step 4: Simplify right side
    515.97x = 234,623.24
  5. Step 5: Solve for x
    x = 234,623.24/515.97
  6. Step 6: Final answer
    x = 454.72

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.