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Finding the Fourth Proportional to 225.34, 310.26 and 197.54

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Solution

The fourth proportional to 225.34, 310.26 and 197.54 is: 271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.34 : 310.26 = 197.54 : x
  2. Step 2: Convert to fraction form
    225.34/310.26 = 197.54/x
  3. Step 3: Cross multiply
    225.34x = 310.26 × 197.54
  4. Step 4: Simplify right side
    225.34x = 61,288.76
  5. Step 5: Solve for x
    x = 61,288.76/225.34
  6. Step 6: Final answer
    x = 271.98

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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.