Home / 298-488

Finding the Third Proportional to 298 and 488

Calculator

Solution

The third proportional to 298 and 488 is: 799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    298 : 488 = 488 : x
  2. Step 2: Convert to fraction form
    298/488 = 488/x
  3. Step 3: Cross multiply
    298x = 488 × 488
  4. Step 4: Simplify right side
    298x = 238,144
  5. Step 5: Solve for x
    x = 238,144/298
  6. Step 6: Final answer
    x = 799.14

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.