Home / 282.43-389.75-158.08

Finding the Fourth Proportional to 282.43, 389.75 and 158.08

Calculator

Solution

The fourth proportional to 282.43, 389.75 and 158.08 is: 218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.43 : 389.75 = 158.08 : x
  2. Step 2: Convert to fraction form
    282.43/389.75 = 158.08/x
  3. Step 3: Cross multiply
    282.43x = 389.75 × 158.08
  4. Step 4: Simplify right side
    282.43x = 61,611.68
  5. Step 5: Solve for x
    x = 61,611.68/282.43
  6. Step 6: Final answer
    x = 218.15

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.