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Finding the Fourth Proportional to 300.60, 453.15 and 269.28

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Solution

The fourth proportional to 300.60, 453.15 and 269.28 is: 405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.60 : 453.15 = 269.28 : x
  2. Step 2: Convert to fraction form
    300.60/453.15 = 269.28/x
  3. Step 3: Cross multiply
    300.60x = 453.15 × 269.28
  4. Step 4: Simplify right side
    300.60x = 122,024.23
  5. Step 5: Solve for x
    x = 122,024.23/300.60
  6. Step 6: Final answer
    x = 405.94

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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.