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Finding the Fourth Proportional to 294.94, 407.11 and 196.73

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Solution

The fourth proportional to 294.94, 407.11 and 196.73 is: 271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.94 : 407.11 = 196.73 : x
  2. Step 2: Convert to fraction form
    294.94/407.11 = 196.73/x
  3. Step 3: Cross multiply
    294.94x = 407.11 × 196.73
  4. Step 4: Simplify right side
    294.94x = 80,088.71
  5. Step 5: Solve for x
    x = 80,088.71/294.94
  6. Step 6: Final answer
    x = 271.55

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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.