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Finding the Fourth Proportional to 355.61, 533.91 and 201.83

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Solution

The fourth proportional to 355.61, 533.91 and 201.83 is: 303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.61 : 533.91 = 201.83 : x
  2. Step 2: Convert to fraction form
    355.61/533.91 = 201.83/x
  3. Step 3: Cross multiply
    355.61x = 533.91 × 201.83
  4. Step 4: Simplify right side
    355.61x = 107,760.39
  5. Step 5: Solve for x
    x = 107,760.39/355.61
  6. Step 6: Final answer
    x = 303.03

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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.