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Finding the Fourth Proportional to 382.52, 527.73 and 299.63

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Solution

The fourth proportional to 382.52, 527.73 and 299.63 is: 413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.52 : 527.73 = 299.63 : x
  2. Step 2: Convert to fraction form
    382.52/527.73 = 299.63/x
  3. Step 3: Cross multiply
    382.52x = 527.73 × 299.63
  4. Step 4: Simplify right side
    382.52x = 158,123.74
  5. Step 5: Solve for x
    x = 158,123.74/382.52
  6. Step 6: Final answer
    x = 413.37

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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.