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Finding the Fourth Proportional to 605.96, 836.50 and 381.96

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Solution

The fourth proportional to 605.96, 836.50 and 381.96 is: 527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.96 : 836.50 = 381.96 : x
  2. Step 2: Convert to fraction form
    605.96/836.50 = 381.96/x
  3. Step 3: Cross multiply
    605.96x = 836.50 × 381.96
  4. Step 4: Simplify right side
    605.96x = 319,509.54
  5. Step 5: Solve for x
    x = 319,509.54/605.96
  6. Step 6: Final answer
    x = 527.28

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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.