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Finding the Fourth Proportional to 304.11, 419.36 and 205.88

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Solution

The fourth proportional to 304.11, 419.36 and 205.88 is: 283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.11 : 419.36 = 205.88 : x
  2. Step 2: Convert to fraction form
    304.11/419.36 = 205.88/x
  3. Step 3: Cross multiply
    304.11x = 419.36 × 205.88
  4. Step 4: Simplify right side
    304.11x = 86,334.71
  5. Step 5: Solve for x
    x = 86,334.71/304.11
  6. Step 6: Final answer
    x = 283.89

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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.