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Finding the Fourth Proportional to 454.99, 627.83 and 255.83

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Solution

The fourth proportional to 454.99, 627.83 and 255.83 is: 353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.99 : 627.83 = 255.83 : x
  2. Step 2: Convert to fraction form
    454.99/627.83 = 255.83/x
  3. Step 3: Cross multiply
    454.99x = 627.83 × 255.83
  4. Step 4: Simplify right side
    454.99x = 160,617.75
  5. Step 5: Solve for x
    x = 160,617.75/454.99
  6. Step 6: Final answer
    x = 353.01

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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.