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Finding the Fourth Proportional to 365.11, 503.85 and 199.33

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Solution

The fourth proportional to 365.11, 503.85 and 199.33 is: 275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.11 : 503.85 = 199.33 : x
  2. Step 2: Convert to fraction form
    365.11/503.85 = 199.33/x
  3. Step 3: Cross multiply
    365.11x = 503.85 × 199.33
  4. Step 4: Simplify right side
    365.11x = 100,432.42
  5. Step 5: Solve for x
    x = 100,432.42/365.11
  6. Step 6: Final answer
    x = 275.07

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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.