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Finding the Fourth Proportional to 295.67, 407.97 and 197.55

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Solution

The fourth proportional to 295.67, 407.97 and 197.55 is: 272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.67 : 407.97 = 197.55 : x
  2. Step 2: Convert to fraction form
    295.67/407.97 = 197.55/x
  3. Step 3: Cross multiply
    295.67x = 407.97 × 197.55
  4. Step 4: Simplify right side
    295.67x = 80,594.47
  5. Step 5: Solve for x
    x = 80,594.47/295.67
  6. Step 6: Final answer
    x = 272.58

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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.