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Finding the Fourth Proportional to 195.19, 291.28 and 174.69

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Solution

The fourth proportional to 195.19, 291.28 and 174.69 is: 260.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.19 : 291.28 = 174.69 : x
  2. Step 2: Convert to fraction form
    195.19/291.28 = 174.69/x
  3. Step 3: Cross multiply
    195.19x = 291.28 × 174.69
  4. Step 4: Simplify right side
    195.19x = 50,883.70
  5. Step 5: Solve for x
    x = 50,883.70/195.19
  6. Step 6: Final answer
    x = 260.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.