Home / 483.75-667.86-318.25

Finding the Fourth Proportional to 483.75, 667.86 and 318.25

Calculator

Solution

The fourth proportional to 483.75, 667.86 and 318.25 is: 439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.75 : 667.86 = 318.25 : x
  2. Step 2: Convert to fraction form
    483.75/667.86 = 318.25/x
  3. Step 3: Cross multiply
    483.75x = 667.86 × 318.25
  4. Step 4: Simplify right side
    483.75x = 212,546.45
  5. Step 5: Solve for x
    x = 212,546.45/483.75
  6. Step 6: Final answer
    x = 439.37

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.