Home / 170.92-256.35-49.15

Finding the Fourth Proportional to 170.92, 256.35 and 49.15

Calculator

Solution

The fourth proportional to 170.92, 256.35 and 49.15 is: 73.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.92 : 256.35 = 49.15 : x
  2. Step 2: Convert to fraction form
    170.92/256.35 = 49.15/x
  3. Step 3: Cross multiply
    170.92x = 256.35 × 49.15
  4. Step 4: Simplify right side
    170.92x = 12,600.31
  5. Step 5: Solve for x
    x = 12,600.31/170.92
  6. Step 6: Final answer
    x = 73.72

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.