Home / 509.87-764.57-201.67

Finding the Fourth Proportional to 509.87, 764.57 and 201.67

Calculator

Solution

The fourth proportional to 509.87, 764.57 and 201.67 is: 302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.87 : 764.57 = 201.67 : x
  2. Step 2: Convert to fraction form
    509.87/764.57 = 201.67/x
  3. Step 3: Cross multiply
    509.87x = 764.57 × 201.67
  4. Step 4: Simplify right side
    509.87x = 154,190.83
  5. Step 5: Solve for x
    x = 154,190.83/509.87
  6. Step 6: Final answer
    x = 302.41

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.