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Finding the Fourth Proportional to 415.84, 573.90 and 229.37

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Solution

The fourth proportional to 415.84, 573.90 and 229.37 is: 316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.84 : 573.90 = 229.37 : x
  2. Step 2: Convert to fraction form
    415.84/573.90 = 229.37/x
  3. Step 3: Cross multiply
    415.84x = 573.90 × 229.37
  4. Step 4: Simplify right side
    415.84x = 131,635.44
  5. Step 5: Solve for x
    x = 131,635.44/415.84
  6. Step 6: Final answer
    x = 316.55

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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.