Home / 289.31-433.70-152.15

Finding the Fourth Proportional to 289.31, 433.70 and 152.15

Calculator

Solution

The fourth proportional to 289.31, 433.70 and 152.15 is: 228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289.31 : 433.70 = 152.15 : x
  2. Step 2: Convert to fraction form
    289.31/433.70 = 152.15/x
  3. Step 3: Cross multiply
    289.31x = 433.70 × 152.15
  4. Step 4: Simplify right side
    289.31x = 65,986.69
  5. Step 5: Solve for x
    x = 65,986.69/289.31
  6. Step 6: Final answer
    x = 228.08

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.