Home / 455.64-628.92-357.16

Finding the Fourth Proportional to 455.64, 628.92 and 357.16

Calculator

Solution

The fourth proportional to 455.64, 628.92 and 357.16 is: 492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.64 : 628.92 = 357.16 : x
  2. Step 2: Convert to fraction form
    455.64/628.92 = 357.16/x
  3. Step 3: Cross multiply
    455.64x = 628.92 × 357.16
  4. Step 4: Simplify right side
    455.64x = 224,625.07
  5. Step 5: Solve for x
    x = 224,625.07/455.64
  6. Step 6: Final answer
    x = 492.99

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.