Home / 548.22-821.64-304.40

Finding the Fourth Proportional to 548.22, 821.64 and 304.40

Calculator

Solution

The fourth proportional to 548.22, 821.64 and 304.40 is: 456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.22 : 821.64 = 304.40 : x
  2. Step 2: Convert to fraction form
    548.22/821.64 = 304.40/x
  3. Step 3: Cross multiply
    548.22x = 821.64 × 304.40
  4. Step 4: Simplify right side
    548.22x = 250,107.22
  5. Step 5: Solve for x
    x = 250,107.22/548.22
  6. Step 6: Final answer
    x = 456.22

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.