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Finding the Fourth Proportional to 494.18, 682.02 and 284.37

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Solution

The fourth proportional to 494.18, 682.02 and 284.37 is: 392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.18 : 682.02 = 284.37 : x
  2. Step 2: Convert to fraction form
    494.18/682.02 = 284.37/x
  3. Step 3: Cross multiply
    494.18x = 682.02 × 284.37
  4. Step 4: Simplify right side
    494.18x = 193,946.03
  5. Step 5: Solve for x
    x = 193,946.03/494.18
  6. Step 6: Final answer
    x = 392.46

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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.