Home / 738.62-1,107.74-218.60

Finding the Fourth Proportional to 738.62, 1,107.74 and 218.60

Calculator

Solution

The fourth proportional to 738.62, 1,107.74 and 218.60 is: 327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.62 : 1,107.74 = 218.60 : x
  2. Step 2: Convert to fraction form
    738.62/1,107.74 = 218.60/x
  3. Step 3: Cross multiply
    738.62x = 1,107.74 × 218.60
  4. Step 4: Simplify right side
    738.62x = 242,151.13
  5. Step 5: Solve for x
    x = 242,151.13/738.62
  6. Step 6: Final answer
    x = 327.84

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.