Home / 454.85-627.80-258.42

Finding the Fourth Proportional to 454.85, 627.80 and 258.42

Calculator

Solution

The fourth proportional to 454.85, 627.80 and 258.42 is: 356.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.85 : 627.80 = 258.42 : x
  2. Step 2: Convert to fraction form
    454.85/627.80 = 258.42/x
  3. Step 3: Cross multiply
    454.85x = 627.80 × 258.42
  4. Step 4: Simplify right side
    454.85x = 162,234.78
  5. Step 5: Solve for x
    x = 162,234.78/454.85
  6. Step 6: Final answer
    x = 356.68

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.