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Finding the Fourth Proportional to 197.83, 272.73 and 148.62

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Solution

The fourth proportional to 197.83, 272.73 and 148.62 is: 204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.83 : 272.73 = 148.62 : x
  2. Step 2: Convert to fraction form
    197.83/272.73 = 148.62/x
  3. Step 3: Cross multiply
    197.83x = 272.73 × 148.62
  4. Step 4: Simplify right side
    197.83x = 40,533.13
  5. Step 5: Solve for x
    x = 40,533.13/197.83
  6. Step 6: Final answer
    x = 204.89

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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.