Home / 328.06-492.12-135.69

Finding the Fourth Proportional to 328.06, 492.12 and 135.69

Calculator

Solution

The fourth proportional to 328.06, 492.12 and 135.69 is: 203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.06 : 492.12 = 135.69 : x
  2. Step 2: Convert to fraction form
    328.06/492.12 = 135.69/x
  3. Step 3: Cross multiply
    328.06x = 492.12 × 135.69
  4. Step 4: Simplify right side
    328.06x = 66,775.76
  5. Step 5: Solve for x
    x = 66,775.76/328.06
  6. Step 6: Final answer
    x = 203.55

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.