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Finding the Fourth Proportional to 355.43, 533.42 and 150.16

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Solution

The fourth proportional to 355.43, 533.42 and 150.16 is: 225.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.43 : 533.42 = 150.16 : x
  2. Step 2: Convert to fraction form
    355.43/533.42 = 150.16/x
  3. Step 3: Cross multiply
    355.43x = 533.42 × 150.16
  4. Step 4: Simplify right side
    355.43x = 80,098.35
  5. Step 5: Solve for x
    x = 80,098.35/355.43
  6. Step 6: Final answer
    x = 225.36

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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.