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Finding the Fourth Proportional to 636.54, 954.27 and 379.50

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Solution

The fourth proportional to 636.54, 954.27 and 379.50 is: 568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.54 : 954.27 = 379.50 : x
  2. Step 2: Convert to fraction form
    636.54/954.27 = 379.50/x
  3. Step 3: Cross multiply
    636.54x = 954.27 × 379.50
  4. Step 4: Simplify right side
    636.54x = 362,145.47
  5. Step 5: Solve for x
    x = 362,145.47/636.54
  6. Step 6: Final answer
    x = 568.93

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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.