Home / 325.25-486.91-284.75

Finding the Fourth Proportional to 325.25, 486.91 and 284.75

Calculator

Solution

The fourth proportional to 325.25, 486.91 and 284.75 is: 426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.25 : 486.91 = 284.75 : x
  2. Step 2: Convert to fraction form
    325.25/486.91 = 284.75/x
  3. Step 3: Cross multiply
    325.25x = 486.91 × 284.75
  4. Step 4: Simplify right side
    325.25x = 138,647.37
  5. Step 5: Solve for x
    x = 138,647.37/325.25
  6. Step 6: Final answer
    x = 426.28

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.