Home / 299.60-449.40-83.16

Finding the Fourth Proportional to 299.60, 449.40 and 83.16

Calculator

Solution

The fourth proportional to 299.60, 449.40 and 83.16 is: 124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.60 : 449.40 = 83.16 : x
  2. Step 2: Convert to fraction form
    299.60/449.40 = 83.16/x
  3. Step 3: Cross multiply
    299.60x = 449.40 × 83.16
  4. Step 4: Simplify right side
    299.60x = 37,372.10
  5. Step 5: Solve for x
    x = 37,372.10/299.60
  6. Step 6: Final answer
    x = 124.74

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.