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Finding the Fourth Proportional to 229.34, 316.13 and 201.66

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Solution

The fourth proportional to 229.34, 316.13 and 201.66 is: 277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.34 : 316.13 = 201.66 : x
  2. Step 2: Convert to fraction form
    229.34/316.13 = 201.66/x
  3. Step 3: Cross multiply
    229.34x = 316.13 × 201.66
  4. Step 4: Simplify right side
    229.34x = 63,750.78
  5. Step 5: Solve for x
    x = 63,750.78/229.34
  6. Step 6: Final answer
    x = 277.97

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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.