Home / 299.07-412.82-257.46

Finding the Fourth Proportional to 299.07, 412.82 and 257.46

Calculator

Solution

The fourth proportional to 299.07, 412.82 and 257.46 is: 355.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.07 : 412.82 = 257.46 : x
  2. Step 2: Convert to fraction form
    299.07/412.82 = 257.46/x
  3. Step 3: Cross multiply
    299.07x = 412.82 × 257.46
  4. Step 4: Simplify right side
    299.07x = 106,282.77
  5. Step 5: Solve for x
    x = 106,282.77/299.07
  6. Step 6: Final answer
    x = 355.38

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.