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Finding the Fourth Proportional to 299.03, 448.61 and 154.71

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Solution

The fourth proportional to 299.03, 448.61 and 154.71 is: 232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.03 : 448.61 = 154.71 : x
  2. Step 2: Convert to fraction form
    299.03/448.61 = 154.71/x
  3. Step 3: Cross multiply
    299.03x = 448.61 × 154.71
  4. Step 4: Simplify right side
    299.03x = 69,403.68
  5. Step 5: Solve for x
    x = 69,403.68/299.03
  6. Step 6: Final answer
    x = 232.10

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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.