Home / 442.24-663.09-305.31

Finding the Fourth Proportional to 442.24, 663.09 and 305.31

Calculator

Solution

The fourth proportional to 442.24, 663.09 and 305.31 is: 457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.24 : 663.09 = 305.31 : x
  2. Step 2: Convert to fraction form
    442.24/663.09 = 305.31/x
  3. Step 3: Cross multiply
    442.24x = 663.09 × 305.31
  4. Step 4: Simplify right side
    442.24x = 202,448.01
  5. Step 5: Solve for x
    x = 202,448.01/442.24
  6. Step 6: Final answer
    x = 457.78

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.