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Finding the Fourth Proportional to 605.91, 836.07 and 343.88

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Solution

The fourth proportional to 605.91, 836.07 and 343.88 is: 474.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.91 : 836.07 = 343.88 : x
  2. Step 2: Convert to fraction form
    605.91/836.07 = 343.88/x
  3. Step 3: Cross multiply
    605.91x = 836.07 × 343.88
  4. Step 4: Simplify right side
    605.91x = 287,503.57
  5. Step 5: Solve for x
    x = 287,503.57/605.91
  6. Step 6: Final answer
    x = 474.50

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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.