Home / 191.20-286.42-88.34

Finding the Fourth Proportional to 191.20, 286.42 and 88.34

Calculator

Solution

The fourth proportional to 191.20, 286.42 and 88.34 is: 132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.20 : 286.42 = 88.34 : x
  2. Step 2: Convert to fraction form
    191.20/286.42 = 88.34/x
  3. Step 3: Cross multiply
    191.20x = 286.42 × 88.34
  4. Step 4: Simplify right side
    191.20x = 25,302.34
  5. Step 5: Solve for x
    x = 25,302.34/191.20
  6. Step 6: Final answer
    x = 132.33

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.