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Finding the Fourth Proportional to 301.99, 416.91 and 203.92

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Solution

The fourth proportional to 301.99, 416.91 and 203.92 is: 281.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.99 : 416.91 = 203.92 : x
  2. Step 2: Convert to fraction form
    301.99/416.91 = 203.92/x
  3. Step 3: Cross multiply
    301.99x = 416.91 × 203.92
  4. Step 4: Simplify right side
    301.99x = 85,016.29
  5. Step 5: Solve for x
    x = 85,016.29/301.99
  6. Step 6: Final answer
    x = 281.52

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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.