Home / 383.93-529.85-218.15

Finding the Fourth Proportional to 383.93, 529.85 and 218.15

Calculator

Solution

The fourth proportional to 383.93, 529.85 and 218.15 is: 301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.93 : 529.85 = 218.15 : x
  2. Step 2: Convert to fraction form
    383.93/529.85 = 218.15/x
  3. Step 3: Cross multiply
    383.93x = 529.85 × 218.15
  4. Step 4: Simplify right side
    383.93x = 115,583.04
  5. Step 5: Solve for x
    x = 115,583.04/383.93
  6. Step 6: Final answer
    x = 301.05

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.