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Finding the Fourth Proportional to 197.13, 295.30 and 194.70

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Solution

The fourth proportional to 197.13, 295.30 and 194.70 is: 291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.13 : 295.30 = 194.70 : x
  2. Step 2: Convert to fraction form
    197.13/295.30 = 194.70/x
  3. Step 3: Cross multiply
    197.13x = 295.30 × 194.70
  4. Step 4: Simplify right side
    197.13x = 57,495.17
  5. Step 5: Solve for x
    x = 57,495.17/197.13
  6. Step 6: Final answer
    x = 291.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.