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Finding the Fourth Proportional to 415.93, 573.97 and 229.41

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Solution

The fourth proportional to 415.93, 573.97 and 229.41 is: 316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.93 : 573.97 = 229.41 : x
  2. Step 2: Convert to fraction form
    415.93/573.97 = 229.41/x
  3. Step 3: Cross multiply
    415.93x = 573.97 × 229.41
  4. Step 4: Simplify right side
    415.93x = 131,674.46
  5. Step 5: Solve for x
    x = 131,674.46/415.93
  6. Step 6: Final answer
    x = 316.58

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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.