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Finding the Fourth Proportional to 320.97, 480.92 and 304.50

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Solution

The fourth proportional to 320.97, 480.92 and 304.50 is: 456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320.97 : 480.92 = 304.50 : x
  2. Step 2: Convert to fraction form
    320.97/480.92 = 304.50/x
  3. Step 3: Cross multiply
    320.97x = 480.92 × 304.50
  4. Step 4: Simplify right side
    320.97x = 146,438.62
  5. Step 5: Solve for x
    x = 146,438.62/320.97
  6. Step 6: Final answer
    x = 456.24

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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.