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Finding the Fourth Proportional to 299.35, 448.28 and 247.05

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Solution

The fourth proportional to 299.35, 448.28 and 247.05 is: 369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.35 : 448.28 = 247.05 : x
  2. Step 2: Convert to fraction form
    299.35/448.28 = 247.05/x
  3. Step 3: Cross multiply
    299.35x = 448.28 × 247.05
  4. Step 4: Simplify right side
    299.35x = 110,748.65
  5. Step 5: Solve for x
    x = 110,748.65/299.35
  6. Step 6: Final answer
    x = 369.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.