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Finding the Fourth Proportional to 293.07, 404.85 and 271.20

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Solution

The fourth proportional to 293.07, 404.85 and 271.20 is: 374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.07 : 404.85 = 271.20 : x
  2. Step 2: Convert to fraction form
    293.07/404.85 = 271.20/x
  3. Step 3: Cross multiply
    293.07x = 404.85 × 271.20
  4. Step 4: Simplify right side
    293.07x = 109,794.05
  5. Step 5: Solve for x
    x = 109,794.05/293.07
  6. Step 6: Final answer
    x = 374.64

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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.