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Finding the Fourth Proportional to 365.50, 547.71 and 243.46

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Solution

The fourth proportional to 365.50, 547.71 and 243.46 is: 364.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.50 : 547.71 = 243.46 : x
  2. Step 2: Convert to fraction form
    365.50/547.71 = 243.46/x
  3. Step 3: Cross multiply
    365.50x = 547.71 × 243.46
  4. Step 4: Simplify right side
    365.50x = 133,345.48
  5. Step 5: Solve for x
    x = 133,345.48/365.50
  6. Step 6: Final answer
    x = 364.83

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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.