Home / 357.20-536.07-287.95

Finding the Fourth Proportional to 357.20, 536.07 and 287.95

Calculator

Solution

The fourth proportional to 357.20, 536.07 and 287.95 is: 432.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.20 : 536.07 = 287.95 : x
  2. Step 2: Convert to fraction form
    357.20/536.07 = 287.95/x
  3. Step 3: Cross multiply
    357.20x = 536.07 × 287.95
  4. Step 4: Simplify right side
    357.20x = 154,359.92
  5. Step 5: Solve for x
    x = 154,359.92/357.20
  6. Step 6: Final answer
    x = 432.14

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.