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Finding the Fourth Proportional to 493.45, 676.02 and 474.98

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Solution

The fourth proportional to 493.45, 676.02 and 474.98 is: 650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.45 : 676.02 = 474.98 : x
  2. Step 2: Convert to fraction form
    493.45/676.02 = 474.98/x
  3. Step 3: Cross multiply
    493.45x = 676.02 × 474.98
  4. Step 4: Simplify right side
    493.45x = 321,093.60
  5. Step 5: Solve for x
    x = 321,093.60/493.45
  6. Step 6: Final answer
    x = 650.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.