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Finding the Fourth Proportional to 636.47, 954.75 and 246.79

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Solution

The fourth proportional to 636.47, 954.75 and 246.79 is: 370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.47 : 954.75 = 246.79 : x
  2. Step 2: Convert to fraction form
    636.47/954.75 = 246.79/x
  3. Step 3: Cross multiply
    636.47x = 954.75 × 246.79
  4. Step 4: Simplify right side
    636.47x = 235,624.87
  5. Step 5: Solve for x
    x = 235,624.87/636.47
  6. Step 6: Final answer
    x = 370.21

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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.