Home / 303.80-455.15-269.91

Finding the Fourth Proportional to 303.80, 455.15 and 269.91

Calculator

Solution

The fourth proportional to 303.80, 455.15 and 269.91 is: 404.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.80 : 455.15 = 269.91 : x
  2. Step 2: Convert to fraction form
    303.80/455.15 = 269.91/x
  3. Step 3: Cross multiply
    303.80x = 455.15 × 269.91
  4. Step 4: Simplify right side
    303.80x = 122,848.19
  5. Step 5: Solve for x
    x = 122,848.19/303.80
  6. Step 6: Final answer
    x = 404.38

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.