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Finding the Fourth Proportional to 297.33, 445.65 and 194.67

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Solution

The fourth proportional to 297.33, 445.65 and 194.67 is: 291.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.33 : 445.65 = 194.67 : x
  2. Step 2: Convert to fraction form
    297.33/445.65 = 194.67/x
  3. Step 3: Cross multiply
    297.33x = 445.65 × 194.67
  4. Step 4: Simplify right side
    297.33x = 86,754.69
  5. Step 5: Solve for x
    x = 86,754.69/297.33
  6. Step 6: Final answer
    x = 291.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.