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Finding the Fourth Proportional to 199.95, 298.46 and 185.30

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Solution

The fourth proportional to 199.95, 298.46 and 185.30 is: 276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.95 : 298.46 = 185.30 : x
  2. Step 2: Convert to fraction form
    199.95/298.46 = 185.30/x
  3. Step 3: Cross multiply
    199.95x = 298.46 × 185.30
  4. Step 4: Simplify right side
    199.95x = 55,304.73
  5. Step 5: Solve for x
    x = 55,304.73/199.95
  6. Step 6: Final answer
    x = 276.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.