Home / 454.16-626.66-288.58

Finding the Fourth Proportional to 454.16, 626.66 and 288.58

Calculator

Solution

The fourth proportional to 454.16, 626.66 and 288.58 is: 398.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.16 : 626.66 = 288.58 : x
  2. Step 2: Convert to fraction form
    454.16/626.66 = 288.58/x
  3. Step 3: Cross multiply
    454.16x = 626.66 × 288.58
  4. Step 4: Simplify right side
    454.16x = 180,841.54
  5. Step 5: Solve for x
    x = 180,841.54/454.16
  6. Step 6: Final answer
    x = 398.19

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.