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Finding the Fourth Proportional to 204.06, 281.65 and 130.36

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Solution

The fourth proportional to 204.06, 281.65 and 130.36 is: 179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.06 : 281.65 = 130.36 : x
  2. Step 2: Convert to fraction form
    204.06/281.65 = 130.36/x
  3. Step 3: Cross multiply
    204.06x = 281.65 × 130.36
  4. Step 4: Simplify right side
    204.06x = 36,715.89
  5. Step 5: Solve for x
    x = 36,715.89/204.06
  6. Step 6: Final answer
    x = 179.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.