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Finding the Fourth Proportional to 325.07, 488.54 and 270.56

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Solution

The fourth proportional to 325.07, 488.54 and 270.56 is: 406.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.07 : 488.54 = 270.56 : x
  2. Step 2: Convert to fraction form
    325.07/488.54 = 270.56/x
  3. Step 3: Cross multiply
    325.07x = 488.54 × 270.56
  4. Step 4: Simplify right side
    325.07x = 132,179.38
  5. Step 5: Solve for x
    x = 132,179.38/325.07
  6. Step 6: Final answer
    x = 406.62

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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.