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Finding the Fourth Proportional to 300.60, 448.47 and 273.69

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Solution

The fourth proportional to 300.60, 448.47 and 273.69 is: 408.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.60 : 448.47 = 273.69 : x
  2. Step 2: Convert to fraction form
    300.60/448.47 = 273.69/x
  3. Step 3: Cross multiply
    300.60x = 448.47 × 273.69
  4. Step 4: Simplify right side
    300.60x = 122,741.75
  5. Step 5: Solve for x
    x = 122,741.75/300.60
  6. Step 6: Final answer
    x = 408.32

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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.