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Finding the Fourth Proportional to 297.05, 443.28 and 277.92

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Solution

The fourth proportional to 297.05, 443.28 and 277.92 is: 414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.05 : 443.28 = 277.92 : x
  2. Step 2: Convert to fraction form
    297.05/443.28 = 277.92/x
  3. Step 3: Cross multiply
    297.05x = 443.28 × 277.92
  4. Step 4: Simplify right side
    297.05x = 123,196.38
  5. Step 5: Solve for x
    x = 123,196.38/297.05
  6. Step 6: Final answer
    x = 414.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.