Home / 325.41-488.72-257.37

Finding the Fourth Proportional to 325.41, 488.72 and 257.37

Calculator

Solution

The fourth proportional to 325.41, 488.72 and 257.37 is: 386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.41 : 488.72 = 257.37 : x
  2. Step 2: Convert to fraction form
    325.41/488.72 = 257.37/x
  3. Step 3: Cross multiply
    325.41x = 488.72 × 257.37
  4. Step 4: Simplify right side
    325.41x = 125,781.87
  5. Step 5: Solve for x
    x = 125,781.87/325.41
  6. Step 6: Final answer
    x = 386.53

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.