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Finding the Fourth Proportional to 355.76, 493.58 and 352.52

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Solution

The fourth proportional to 355.76, 493.58 and 352.52 is: 489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.76 : 493.58 = 352.52 : x
  2. Step 2: Convert to fraction form
    355.76/493.58 = 352.52/x
  3. Step 3: Cross multiply
    355.76x = 493.58 × 352.52
  4. Step 4: Simplify right side
    355.76x = 173,996.82
  5. Step 5: Solve for x
    x = 173,996.82/355.76
  6. Step 6: Final answer
    x = 489.08

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.