Home / 445.73-614.90-280.04

Finding the Fourth Proportional to 445.73, 614.90 and 280.04

Calculator

Solution

The fourth proportional to 445.73, 614.90 and 280.04 is: 386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.73 : 614.90 = 280.04 : x
  2. Step 2: Convert to fraction form
    445.73/614.90 = 280.04/x
  3. Step 3: Cross multiply
    445.73x = 614.90 × 280.04
  4. Step 4: Simplify right side
    445.73x = 172,194.22
  5. Step 5: Solve for x
    x = 172,194.22/445.73
  6. Step 6: Final answer
    x = 386.32

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.