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Finding the Fourth Proportional to 355.08, 492.28 and 336.62

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Solution

The fourth proportional to 355.08, 492.28 and 336.62 is: 466.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.08 : 492.28 = 336.62 : x
  2. Step 2: Convert to fraction form
    355.08/492.28 = 336.62/x
  3. Step 3: Cross multiply
    355.08x = 492.28 × 336.62
  4. Step 4: Simplify right side
    355.08x = 165,711.29
  5. Step 5: Solve for x
    x = 165,711.29/355.08
  6. Step 6: Final answer
    x = 466.69

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.