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Finding the Fourth Proportional to 360.11, 499.60 and 347.15

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Solution

The fourth proportional to 360.11, 499.60 and 347.15 is: 481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.11 : 499.60 = 347.15 : x
  2. Step 2: Convert to fraction form
    360.11/499.60 = 347.15/x
  3. Step 3: Cross multiply
    360.11x = 499.60 × 347.15
  4. Step 4: Simplify right side
    360.11x = 173,436.14
  5. Step 5: Solve for x
    x = 173,436.14/360.11
  6. Step 6: Final answer
    x = 481.62

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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.