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Finding the Fourth Proportional to 365.30, 547.24 and 235.09

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Solution

The fourth proportional to 365.30, 547.24 and 235.09 is: 352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.30 : 547.24 = 235.09 : x
  2. Step 2: Convert to fraction form
    365.30/547.24 = 235.09/x
  3. Step 3: Cross multiply
    365.30x = 547.24 × 235.09
  4. Step 4: Simplify right side
    365.30x = 128,650.65
  5. Step 5: Solve for x
    x = 128,650.65/365.30
  6. Step 6: Final answer
    x = 352.18

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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.