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Finding the Fourth Proportional to 355.28, 533.86 and 303.37

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Solution

The fourth proportional to 355.28, 533.86 and 303.37 is: 455.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.28 : 533.86 = 303.37 : x
  2. Step 2: Convert to fraction form
    355.28/533.86 = 303.37/x
  3. Step 3: Cross multiply
    355.28x = 533.86 × 303.37
  4. Step 4: Simplify right side
    355.28x = 161,955.02
  5. Step 5: Solve for x
    x = 161,955.02/355.28
  6. Step 6: Final answer
    x = 455.86

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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.