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Finding the Fourth Proportional to 443.27, 612.15 and 365.36

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Solution

The fourth proportional to 443.27, 612.15 and 365.36 is: 504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.27 : 612.15 = 365.36 : x
  2. Step 2: Convert to fraction form
    443.27/612.15 = 365.36/x
  3. Step 3: Cross multiply
    443.27x = 612.15 × 365.36
  4. Step 4: Simplify right side
    443.27x = 223,652.06
  5. Step 5: Solve for x
    x = 223,652.06/443.27
  6. Step 6: Final answer
    x = 504.56

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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.