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Finding the Fourth Proportional to 270.39, 404.82 and 202.23

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Solution

The fourth proportional to 270.39, 404.82 and 202.23 is: 302.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.39 : 404.82 = 202.23 : x
  2. Step 2: Convert to fraction form
    270.39/404.82 = 202.23/x
  3. Step 3: Cross multiply
    270.39x = 404.82 × 202.23
  4. Step 4: Simplify right side
    270.39x = 81,866.75
  5. Step 5: Solve for x
    x = 81,866.75/270.39
  6. Step 6: Final answer
    x = 302.77

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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.