Home / 218.98-328.40-97.24

Finding the Fourth Proportional to 218.98, 328.40 and 97.24

Calculator

Solution

The fourth proportional to 218.98, 328.40 and 97.24 is: 145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.98 : 328.40 = 97.24 : x
  2. Step 2: Convert to fraction form
    218.98/328.40 = 97.24/x
  3. Step 3: Cross multiply
    218.98x = 328.40 × 97.24
  4. Step 4: Simplify right side
    218.98x = 31,933.62
  5. Step 5: Solve for x
    x = 31,933.62/218.98
  6. Step 6: Final answer
    x = 145.83

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.