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Finding the Fourth Proportional to 327.43, 488.38 and 304.75

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Solution

The fourth proportional to 327.43, 488.38 and 304.75 is: 454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.43 : 488.38 = 304.75 : x
  2. Step 2: Convert to fraction form
    327.43/488.38 = 304.75/x
  3. Step 3: Cross multiply
    327.43x = 488.38 × 304.75
  4. Step 4: Simplify right side
    327.43x = 148,830.98
  5. Step 5: Solve for x
    x = 148,830.98/327.43
  6. Step 6: Final answer
    x = 454.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.