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Finding the Fourth Proportional to 605.04, 834.90 and 356.46

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Solution

The fourth proportional to 605.04, 834.90 and 356.46 is: 491.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.04 : 834.90 = 356.46 : x
  2. Step 2: Convert to fraction form
    605.04/834.90 = 356.46/x
  3. Step 3: Cross multiply
    605.04x = 834.90 × 356.46
  4. Step 4: Simplify right side
    605.04x = 297,608.45
  5. Step 5: Solve for x
    x = 297,608.45/605.04
  6. Step 6: Final answer
    x = 491.88

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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.