Home / 513.04-708-306

Finding the Fourth Proportional to 513.04, 708 and 306

Calculator

Solution

The fourth proportional to 513.04, 708 and 306 is: 422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.04 : 708 = 306 : x
  2. Step 2: Convert to fraction form
    513.04/708 = 306/x
  3. Step 3: Cross multiply
    513.04x = 708 × 306
  4. Step 4: Simplify right side
    513.04x = 216,648
  5. Step 5: Solve for x
    x = 216,648/513.04
  6. Step 6: Final answer
    x = 422.28

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.