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Finding the Fourth Proportional to 300.73, 453.16 and 247.81

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Solution

The fourth proportional to 300.73, 453.16 and 247.81 is: 373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.73 : 453.16 = 247.81 : x
  2. Step 2: Convert to fraction form
    300.73/453.16 = 247.81/x
  3. Step 3: Cross multiply
    300.73x = 453.16 × 247.81
  4. Step 4: Simplify right side
    300.73x = 112,297.58
  5. Step 5: Solve for x
    x = 112,297.58/300.73
  6. Step 6: Final answer
    x = 373.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.