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Finding the Fourth Proportional to 636.16, 954.06 and 225.20

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Solution

The fourth proportional to 636.16, 954.06 and 225.20 is: 337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.16 : 954.06 = 225.20 : x
  2. Step 2: Convert to fraction form
    636.16/954.06 = 225.20/x
  3. Step 3: Cross multiply
    636.16x = 954.06 × 225.20
  4. Step 4: Simplify right side
    636.16x = 214,854.31
  5. Step 5: Solve for x
    x = 214,854.31/636.16
  6. Step 6: Final answer
    x = 337.74

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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.