Home / 253.48-380.04-131.62

Finding the Fourth Proportional to 253.48, 380.04 and 131.62

Calculator

Solution

The fourth proportional to 253.48, 380.04 and 131.62 is: 197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.48 : 380.04 = 131.62 : x
  2. Step 2: Convert to fraction form
    253.48/380.04 = 131.62/x
  3. Step 3: Cross multiply
    253.48x = 380.04 × 131.62
  4. Step 4: Simplify right side
    253.48x = 50,020.86
  5. Step 5: Solve for x
    x = 50,020.86/253.48
  6. Step 6: Final answer
    x = 197.34

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.