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Finding the Fourth Proportional to 355.71, 533.57 and 95.74

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Solution

The fourth proportional to 355.71, 533.57 and 95.74 is: 143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.71 : 533.57 = 95.74 : x
  2. Step 2: Convert to fraction form
    355.71/533.57 = 95.74/x
  3. Step 3: Cross multiply
    355.71x = 533.57 × 95.74
  4. Step 4: Simplify right side
    355.71x = 51,083.99
  5. Step 5: Solve for x
    x = 51,083.99/355.71
  6. Step 6: Final answer
    x = 143.61

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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.