Home / 188.22-280.23-187.30

Finding the Fourth Proportional to 188.22, 280.23 and 187.30

Calculator

Solution

The fourth proportional to 188.22, 280.23 and 187.30 is: 278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.22 : 280.23 = 187.30 : x
  2. Step 2: Convert to fraction form
    188.22/280.23 = 187.30/x
  3. Step 3: Cross multiply
    188.22x = 280.23 × 187.30
  4. Step 4: Simplify right side
    188.22x = 52,486.61
  5. Step 5: Solve for x
    x = 52,486.61/188.22
  6. Step 6: Final answer
    x = 278.87

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.