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Finding the Fourth Proportional to 360.08, 499.28 and 349.28

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Solution

The fourth proportional to 360.08, 499.28 and 349.28 is: 484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.08 : 499.28 = 349.28 : x
  2. Step 2: Convert to fraction form
    360.08/499.28 = 349.28/x
  3. Step 3: Cross multiply
    360.08x = 499.28 × 349.28
  4. Step 4: Simplify right side
    360.08x = 174,388.52
  5. Step 5: Solve for x
    x = 174,388.52/360.08
  6. Step 6: Final answer
    x = 484.30

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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.