Home / 290.09-435.42-168.59

Finding the Fourth Proportional to 290.09, 435.42 and 168.59

Calculator

Solution

The fourth proportional to 290.09, 435.42 and 168.59 is: 253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    290.09 : 435.42 = 168.59 : x
  2. Step 2: Convert to fraction form
    290.09/435.42 = 168.59/x
  3. Step 3: Cross multiply
    290.09x = 435.42 × 168.59
  4. Step 4: Simplify right side
    290.09x = 73,405.28
  5. Step 5: Solve for x
    x = 73,405.28/290.09
  6. Step 6: Final answer
    x = 253.05

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.