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Finding the Fourth Proportional to 492.89, 738.86 and 330.62

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Solution

The fourth proportional to 492.89, 738.86 and 330.62 is: 495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.89 : 738.86 = 330.62 : x
  2. Step 2: Convert to fraction form
    492.89/738.86 = 330.62/x
  3. Step 3: Cross multiply
    492.89x = 738.86 × 330.62
  4. Step 4: Simplify right side
    492.89x = 244,276.55
  5. Step 5: Solve for x
    x = 244,276.55/492.89
  6. Step 6: Final answer
    x = 495.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.