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Finding the Fourth Proportional to 575.48, 862.54 and 331.50

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Solution

The fourth proportional to 575.48, 862.54 and 331.50 is: 496.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.48 : 862.54 = 331.50 : x
  2. Step 2: Convert to fraction form
    575.48/862.54 = 331.50/x
  3. Step 3: Cross multiply
    575.48x = 862.54 × 331.50
  4. Step 4: Simplify right side
    575.48x = 285,930.35
  5. Step 5: Solve for x
    x = 285,930.35/575.48
  6. Step 6: Final answer
    x = 496.86

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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.