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Finding the Fourth Proportional to 299.66, 448.76 and 203.18

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Solution

The fourth proportional to 299.66, 448.76 and 203.18 is: 304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.66 : 448.76 = 203.18 : x
  2. Step 2: Convert to fraction form
    299.66/448.76 = 203.18/x
  3. Step 3: Cross multiply
    299.66x = 448.76 × 203.18
  4. Step 4: Simplify right side
    299.66x = 91,179.06
  5. Step 5: Solve for x
    x = 91,179.06/299.66
  6. Step 6: Final answer
    x = 304.28

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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.