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Finding the Fourth Proportional to 300.36, 452.30 and 262.31

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Solution

The fourth proportional to 300.36, 452.30 and 262.31 is: 394.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.36 : 452.30 = 262.31 : x
  2. Step 2: Convert to fraction form
    300.36/452.30 = 262.31/x
  3. Step 3: Cross multiply
    300.36x = 452.30 × 262.31
  4. Step 4: Simplify right side
    300.36x = 118,639.24
  5. Step 5: Solve for x
    x = 118,639.24/300.36
  6. Step 6: Final answer
    x = 394.99

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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.