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Finding the Fourth Proportional to 297.83, 446.85 and 270.74

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Solution

The fourth proportional to 297.83, 446.85 and 270.74 is: 406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.83 : 446.85 = 270.74 : x
  2. Step 2: Convert to fraction form
    297.83/446.85 = 270.74/x
  3. Step 3: Cross multiply
    297.83x = 446.85 × 270.74
  4. Step 4: Simplify right side
    297.83x = 120,977.93
  5. Step 5: Solve for x
    x = 120,977.93/297.83
  6. Step 6: Final answer
    x = 406.20

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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.