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Finding the Fourth Proportional to 225.64, 339.66 and 195.87

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Solution

The fourth proportional to 225.64, 339.66 and 195.87 is: 294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.64 : 339.66 = 195.87 : x
  2. Step 2: Convert to fraction form
    225.64/339.66 = 195.87/x
  3. Step 3: Cross multiply
    225.64x = 339.66 × 195.87
  4. Step 4: Simplify right side
    225.64x = 66,529.20
  5. Step 5: Solve for x
    x = 66,529.20/225.64
  6. Step 6: Final answer
    x = 294.85

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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.