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Finding the Fourth Proportional to 554.46, 765.12 and 327.33

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Solution

The fourth proportional to 554.46, 765.12 and 327.33 is: 451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.46 : 765.12 = 327.33 : x
  2. Step 2: Convert to fraction form
    554.46/765.12 = 327.33/x
  3. Step 3: Cross multiply
    554.46x = 765.12 × 327.33
  4. Step 4: Simplify right side
    554.46x = 250,446.73
  5. Step 5: Solve for x
    x = 250,446.73/554.46
  6. Step 6: Final answer
    x = 451.69

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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.