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Finding the Fourth Proportional to 423.05, 634.03 and 365.27

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Solution

The fourth proportional to 423.05, 634.03 and 365.27 is: 547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.05 : 634.03 = 365.27 : x
  2. Step 2: Convert to fraction form
    423.05/634.03 = 365.27/x
  3. Step 3: Cross multiply
    423.05x = 634.03 × 365.27
  4. Step 4: Simplify right side
    423.05x = 231,588.05
  5. Step 5: Solve for x
    x = 231,588.05/423.05
  6. Step 6: Final answer
    x = 547.43

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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.