Home / 484.82-669.05-288.35

Finding the Fourth Proportional to 484.82, 669.05 and 288.35

Calculator

Solution

The fourth proportional to 484.82, 669.05 and 288.35 is: 397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.82 : 669.05 = 288.35 : x
  2. Step 2: Convert to fraction form
    484.82/669.05 = 288.35/x
  3. Step 3: Cross multiply
    484.82x = 669.05 × 288.35
  4. Step 4: Simplify right side
    484.82x = 192,915.78
  5. Step 5: Solve for x
    x = 192,915.78/484.82
  6. Step 6: Final answer
    x = 397.92

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.