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Finding the Fourth Proportional to 454.54, 627.52 and 299.74

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Solution

The fourth proportional to 454.54, 627.52 and 299.74 is: 413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.54 : 627.52 = 299.74 : x
  2. Step 2: Convert to fraction form
    454.54/627.52 = 299.74/x
  3. Step 3: Cross multiply
    454.54x = 627.52 × 299.74
  4. Step 4: Simplify right side
    454.54x = 188,091.35
  5. Step 5: Solve for x
    x = 188,091.35/454.54
  6. Step 6: Final answer
    x = 413.81

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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.