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Finding the Fourth Proportional to 195.72, 295.45 and 188.63

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Solution

The fourth proportional to 195.72, 295.45 and 188.63 is: 284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.72 : 295.45 = 188.63 : x
  2. Step 2: Convert to fraction form
    195.72/295.45 = 188.63/x
  3. Step 3: Cross multiply
    195.72x = 295.45 × 188.63
  4. Step 4: Simplify right side
    195.72x = 55,729.89
  5. Step 5: Solve for x
    x = 55,729.89/195.72
  6. Step 6: Final answer
    x = 284.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.