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Finding the Fourth Proportional to 270.08, 403.73 and 200.83

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Solution

The fourth proportional to 270.08, 403.73 and 200.83 is: 300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.08 : 403.73 = 200.83 : x
  2. Step 2: Convert to fraction form
    270.08/403.73 = 200.83/x
  3. Step 3: Cross multiply
    270.08x = 403.73 × 200.83
  4. Step 4: Simplify right side
    270.08x = 81,081.72
  5. Step 5: Solve for x
    x = 81,081.72/270.08
  6. Step 6: Final answer
    x = 300.21

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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.