Home / 278.01-416.95-115.61

Finding the Fourth Proportional to 278.01, 416.95 and 115.61

Calculator

Solution

The fourth proportional to 278.01, 416.95 and 115.61 is: 173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    278.01 : 416.95 = 115.61 : x
  2. Step 2: Convert to fraction form
    278.01/416.95 = 115.61/x
  3. Step 3: Cross multiply
    278.01x = 416.95 × 115.61
  4. Step 4: Simplify right side
    278.01x = 48,201.22
  5. Step 5: Solve for x
    x = 48,201.22/278.01
  6. Step 6: Final answer
    x = 173.38

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.