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Finding the Fourth Proportional to 636.03, 954.10 and 173.85

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Solution

The fourth proportional to 636.03, 954.10 and 173.85 is: 260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.03 : 954.10 = 173.85 : x
  2. Step 2: Convert to fraction form
    636.03/954.10 = 173.85/x
  3. Step 3: Cross multiply
    636.03x = 954.10 × 173.85
  4. Step 4: Simplify right side
    636.03x = 165,870.29
  5. Step 5: Solve for x
    x = 165,870.29/636.03
  6. Step 6: Final answer
    x = 260.79

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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.