Home / 468.48-645.60-330.24

Finding the Fourth Proportional to 468.48, 645.60 and 330.24

Calculator

Solution

The fourth proportional to 468.48, 645.60 and 330.24 is: 455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.48 : 645.60 = 330.24 : x
  2. Step 2: Convert to fraction form
    468.48/645.60 = 330.24/x
  3. Step 3: Cross multiply
    468.48x = 645.60 × 330.24
  4. Step 4: Simplify right side
    468.48x = 213,202.94
  5. Step 5: Solve for x
    x = 213,202.94/468.48
  6. Step 6: Final answer
    x = 455.10

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.