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Finding the Fourth Proportional to 495, 682.97 and 298.44

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Solution

The fourth proportional to 495, 682.97 and 298.44 is: 411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    495 : 682.97 = 298.44 : x
  2. Step 2: Convert to fraction form
    495/682.97 = 298.44/x
  3. Step 3: Cross multiply
    495x = 682.97 × 298.44
  4. Step 4: Simplify right side
    495x = 203,824.07
  5. Step 5: Solve for x
    x = 203,824.07/495
  6. Step 6: Final answer
    x = 411.77

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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.