Home / 321.87-444.15-190.95

Finding the Fourth Proportional to 321.87, 444.15 and 190.95

Calculator

Solution

The fourth proportional to 321.87, 444.15 and 190.95 is: 263.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.87 : 444.15 = 190.95 : x
  2. Step 2: Convert to fraction form
    321.87/444.15 = 190.95/x
  3. Step 3: Cross multiply
    321.87x = 444.15 × 190.95
  4. Step 4: Simplify right side
    321.87x = 84,810.44
  5. Step 5: Solve for x
    x = 84,810.44/321.87
  6. Step 6: Final answer
    x = 263.49

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.