Home / 320.88-442.80-180.99

Finding the Fourth Proportional to 320.88, 442.80 and 180.99

Calculator

Solution

The fourth proportional to 320.88, 442.80 and 180.99 is: 249.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320.88 : 442.80 = 180.99 : x
  2. Step 2: Convert to fraction form
    320.88/442.80 = 180.99/x
  3. Step 3: Cross multiply
    320.88x = 442.80 × 180.99
  4. Step 4: Simplify right side
    320.88x = 80,142.37
  5. Step 5: Solve for x
    x = 80,142.37/320.88
  6. Step 6: Final answer
    x = 249.76

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.