Home / 255.81-383.79-134.06

Finding the Fourth Proportional to 255.81, 383.79 and 134.06

Calculator

Solution

The fourth proportional to 255.81, 383.79 and 134.06 is: 201.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.81 : 383.79 = 134.06 : x
  2. Step 2: Convert to fraction form
    255.81/383.79 = 134.06/x
  3. Step 3: Cross multiply
    255.81x = 383.79 × 134.06
  4. Step 4: Simplify right side
    255.81x = 51,448.72
  5. Step 5: Solve for x
    x = 51,448.72/255.81
  6. Step 6: Final answer
    x = 201.12

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.