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Finding the Fourth Proportional to 360.76, 495.45 and 302.44

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Solution

The fourth proportional to 360.76, 495.45 and 302.44 is: 415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.76 : 495.45 = 302.44 : x
  2. Step 2: Convert to fraction form
    360.76/495.45 = 302.44/x
  3. Step 3: Cross multiply
    360.76x = 495.45 × 302.44
  4. Step 4: Simplify right side
    360.76x = 149,843.90
  5. Step 5: Solve for x
    x = 149,843.90/360.76
  6. Step 6: Final answer
    x = 415.36

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.