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Finding the Fourth Proportional to 365.88, 548.11 and 288.43

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Solution

The fourth proportional to 365.88, 548.11 and 288.43 is: 432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.88 : 548.11 = 288.43 : x
  2. Step 2: Convert to fraction form
    365.88/548.11 = 288.43/x
  3. Step 3: Cross multiply
    365.88x = 548.11 × 288.43
  4. Step 4: Simplify right side
    365.88x = 158,091.37
  5. Step 5: Solve for x
    x = 158,091.37/365.88
  6. Step 6: Final answer
    x = 432.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.