Home / 198.14-297.15-53.82

Finding the Fourth Proportional to 198.14, 297.15 and 53.82

Calculator

Solution

The fourth proportional to 198.14, 297.15 and 53.82 is: 80.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.14 : 297.15 = 53.82 : x
  2. Step 2: Convert to fraction form
    198.14/297.15 = 53.82/x
  3. Step 3: Cross multiply
    198.14x = 297.15 × 53.82
  4. Step 4: Simplify right side
    198.14x = 15,992.61
  5. Step 5: Solve for x
    x = 15,992.61/198.14
  6. Step 6: Final answer
    x = 80.72

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.