Home / 360.76-498-278.14

Finding the Fourth Proportional to 360.76, 498 and 278.14

Calculator

Solution

The fourth proportional to 360.76, 498 and 278.14 is: 383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.76 : 498 = 278.14 : x
  2. Step 2: Convert to fraction form
    360.76/498 = 278.14/x
  3. Step 3: Cross multiply
    360.76x = 498 × 278.14
  4. Step 4: Simplify right side
    360.76x = 138,513.72
  5. Step 5: Solve for x
    x = 138,513.72/360.76
  6. Step 6: Final answer
    x = 383.95

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.