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Finding the Fourth Proportional to 494.17, 681.26 and 336.55

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Solution

The fourth proportional to 494.17, 681.26 and 336.55 is: 463.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.17 : 681.26 = 336.55 : x
  2. Step 2: Convert to fraction form
    494.17/681.26 = 336.55/x
  3. Step 3: Cross multiply
    494.17x = 681.26 × 336.55
  4. Step 4: Simplify right side
    494.17x = 229,278.05
  5. Step 5: Solve for x
    x = 229,278.05/494.17
  6. Step 6: Final answer
    x = 463.97

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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.