Home / 319.57-479.36-175.21

Finding the Fourth Proportional to 319.57, 479.36 and 175.21

Calculator

Solution

The fourth proportional to 319.57, 479.36 and 175.21 is: 262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.57 : 479.36 = 175.21 : x
  2. Step 2: Convert to fraction form
    319.57/479.36 = 175.21/x
  3. Step 3: Cross multiply
    319.57x = 479.36 × 175.21
  4. Step 4: Simplify right side
    319.57x = 83,988.67
  5. Step 5: Solve for x
    x = 83,988.67/319.57
  6. Step 6: Final answer
    x = 262.82

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.