Home / 255.90-383.85-73.29

Finding the Fourth Proportional to 255.90, 383.85 and 73.29

Calculator

Solution

The fourth proportional to 255.90, 383.85 and 73.29 is: 109.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.90 : 383.85 = 73.29 : x
  2. Step 2: Convert to fraction form
    255.90/383.85 = 73.29/x
  3. Step 3: Cross multiply
    255.90x = 383.85 × 73.29
  4. Step 4: Simplify right side
    255.90x = 28,132.37
  5. Step 5: Solve for x
    x = 28,132.37/255.90
  6. Step 6: Final answer
    x = 109.94

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.