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Finding the Fourth Proportional to 300.92, 414.95 and 230.99

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Solution

The fourth proportional to 300.92, 414.95 and 230.99 is: 318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.92 : 414.95 = 230.99 : x
  2. Step 2: Convert to fraction form
    300.92/414.95 = 230.99/x
  3. Step 3: Cross multiply
    300.92x = 414.95 × 230.99
  4. Step 4: Simplify right side
    300.92x = 95,846.07
  5. Step 5: Solve for x
    x = 95,846.07/300.92
  6. Step 6: Final answer
    x = 318.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.