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Finding the Fourth Proportional to 415.92, 573.33 and 349.50

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Solution

The fourth proportional to 415.92, 573.33 and 349.50 is: 481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.92 : 573.33 = 349.50 : x
  2. Step 2: Convert to fraction form
    415.92/573.33 = 349.50/x
  3. Step 3: Cross multiply
    415.92x = 573.33 × 349.50
  4. Step 4: Simplify right side
    415.92x = 200,378.84
  5. Step 5: Solve for x
    x = 200,378.84/415.92
  6. Step 6: Final answer
    x = 481.77

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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.