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Finding the Fourth Proportional to 636.13, 954.21 and 203.32

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Solution

The fourth proportional to 636.13, 954.21 and 203.32 is: 304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.13 : 954.21 = 203.32 : x
  2. Step 2: Convert to fraction form
    636.13/954.21 = 203.32/x
  3. Step 3: Cross multiply
    636.13x = 954.21 × 203.32
  4. Step 4: Simplify right side
    636.13x = 194,009.98
  5. Step 5: Solve for x
    x = 194,009.98/636.13
  6. Step 6: Final answer
    x = 304.98

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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.