Home / 379.49-523.67-248.67

Finding the Fourth Proportional to 379.49, 523.67 and 248.67

Calculator

Solution

The fourth proportional to 379.49, 523.67 and 248.67 is: 343.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.49 : 523.67 = 248.67 : x
  2. Step 2: Convert to fraction form
    379.49/523.67 = 248.67/x
  3. Step 3: Cross multiply
    379.49x = 523.67 × 248.67
  4. Step 4: Simplify right side
    379.49x = 130,219.78
  5. Step 5: Solve for x
    x = 130,219.78/379.49
  6. Step 6: Final answer
    x = 343.15

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.