Home / 320.49-480.27-137.63

Finding the Fourth Proportional to 320.49, 480.27 and 137.63

Calculator

Solution

The fourth proportional to 320.49, 480.27 and 137.63 is: 206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320.49 : 480.27 = 137.63 : x
  2. Step 2: Convert to fraction form
    320.49/480.27 = 137.63/x
  3. Step 3: Cross multiply
    320.49x = 480.27 × 137.63
  4. Step 4: Simplify right side
    320.49x = 66,097.16
  5. Step 5: Solve for x
    x = 66,097.16/320.49
  6. Step 6: Final answer
    x = 206.24

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.