Home / 451.87-623.61-255.39

Finding the Fourth Proportional to 451.87, 623.61 and 255.39

Calculator

Solution

The fourth proportional to 451.87, 623.61 and 255.39 is: 352.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.87 : 623.61 = 255.39 : x
  2. Step 2: Convert to fraction form
    451.87/623.61 = 255.39/x
  3. Step 3: Cross multiply
    451.87x = 623.61 × 255.39
  4. Step 4: Simplify right side
    451.87x = 159,260.64
  5. Step 5: Solve for x
    x = 159,260.64/451.87
  6. Step 6: Final answer
    x = 352.45

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.