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Finding the Fourth Proportional to 365.40, 548.73 and 200.79

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Solution

The fourth proportional to 365.40, 548.73 and 200.79 is: 301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.40 : 548.73 = 200.79 : x
  2. Step 2: Convert to fraction form
    365.40/548.73 = 200.79/x
  3. Step 3: Cross multiply
    365.40x = 548.73 × 200.79
  4. Step 4: Simplify right side
    365.40x = 110,179.50
  5. Step 5: Solve for x
    x = 110,179.50/365.40
  6. Step 6: Final answer
    x = 301.53

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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.