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Finding the Fourth Proportional to 663.94, 996.52 and 356.14

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Solution

The fourth proportional to 663.94, 996.52 and 356.14 is: 534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.94 : 996.52 = 356.14 : x
  2. Step 2: Convert to fraction form
    663.94/996.52 = 356.14/x
  3. Step 3: Cross multiply
    663.94x = 996.52 × 356.14
  4. Step 4: Simplify right side
    663.94x = 354,900.63
  5. Step 5: Solve for x
    x = 354,900.63/663.94
  6. Step 6: Final answer
    x = 534.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.