Home / 439.92-607.07-243.43

Finding the Fourth Proportional to 439.92, 607.07 and 243.43

Calculator

Solution

The fourth proportional to 439.92, 607.07 and 243.43 is: 335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.92 : 607.07 = 243.43 : x
  2. Step 2: Convert to fraction form
    439.92/607.07 = 243.43/x
  3. Step 3: Cross multiply
    439.92x = 607.07 × 243.43
  4. Step 4: Simplify right side
    439.92x = 147,778.14
  5. Step 5: Solve for x
    x = 147,778.14/439.92
  6. Step 6: Final answer
    x = 335.92

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.