Home / 279.93-386.34-181.71

Finding the Fourth Proportional to 279.93, 386.34 and 181.71

Calculator

Solution

The fourth proportional to 279.93, 386.34 and 181.71 is: 250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.93 : 386.34 = 181.71 : x
  2. Step 2: Convert to fraction form
    279.93/386.34 = 181.71/x
  3. Step 3: Cross multiply
    279.93x = 386.34 × 181.71
  4. Step 4: Simplify right side
    279.93x = 70,201.84
  5. Step 5: Solve for x
    x = 70,201.84/279.93
  6. Step 6: Final answer
    x = 250.78

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.