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Finding the Fourth Proportional to 448.88, 673.52 and 328.14

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Solution

The fourth proportional to 448.88, 673.52 and 328.14 is: 492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.88 : 673.52 = 328.14 : x
  2. Step 2: Convert to fraction form
    448.88/673.52 = 328.14/x
  3. Step 3: Cross multiply
    448.88x = 673.52 × 328.14
  4. Step 4: Simplify right side
    448.88x = 221,007.21
  5. Step 5: Solve for x
    x = 221,007.21/448.88
  6. Step 6: Final answer
    x = 492.36

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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.