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Finding the Fourth Proportional to 355.76, 533.28 and 150.47

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Solution

The fourth proportional to 355.76, 533.28 and 150.47 is: 225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.76 : 533.28 = 150.47 : x
  2. Step 2: Convert to fraction form
    355.76/533.28 = 150.47/x
  3. Step 3: Cross multiply
    355.76x = 533.28 × 150.47
  4. Step 4: Simplify right side
    355.76x = 80,242.64
  5. Step 5: Solve for x
    x = 80,242.64/355.76
  6. Step 6: Final answer
    x = 225.55

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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.