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Finding the Fourth Proportional to 360.24, 495.60 and 297.36

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Solution

The fourth proportional to 360.24, 495.60 and 297.36 is: 409.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.24 : 495.60 = 297.36 : x
  2. Step 2: Convert to fraction form
    360.24/495.60 = 297.36/x
  3. Step 3: Cross multiply
    360.24x = 495.60 × 297.36
  4. Step 4: Simplify right side
    360.24x = 147,371.62
  5. Step 5: Solve for x
    x = 147,371.62/360.24
  6. Step 6: Final answer
    x = 409.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.