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Finding the Fourth Proportional to 299.29, 448.91 and 114.17

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Solution

The fourth proportional to 299.29, 448.91 and 114.17 is: 171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.29 : 448.91 = 114.17 : x
  2. Step 2: Convert to fraction form
    299.29/448.91 = 114.17/x
  3. Step 3: Cross multiply
    299.29x = 448.91 × 114.17
  4. Step 4: Simplify right side
    299.29x = 51,252.61
  5. Step 5: Solve for x
    x = 51,252.61/299.29
  6. Step 6: Final answer
    x = 171.25

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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.