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Finding the Fourth Proportional to 365.54, 504.26 and 218.09

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Solution

The fourth proportional to 365.54, 504.26 and 218.09 is: 300.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.54 : 504.26 = 218.09 : x
  2. Step 2: Convert to fraction form
    365.54/504.26 = 218.09/x
  3. Step 3: Cross multiply
    365.54x = 504.26 × 218.09
  4. Step 4: Simplify right side
    365.54x = 109,970.45
  5. Step 5: Solve for x
    x = 109,970.45/365.54
  6. Step 6: Final answer
    x = 300.85

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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.