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Finding the Fourth Proportional to 349.79, 482.71 and 192.42

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Solution

The fourth proportional to 349.79, 482.71 and 192.42 is: 265.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.79 : 482.71 = 192.42 : x
  2. Step 2: Convert to fraction form
    349.79/482.71 = 192.42/x
  3. Step 3: Cross multiply
    349.79x = 482.71 × 192.42
  4. Step 4: Simplify right side
    349.79x = 92,883.54
  5. Step 5: Solve for x
    x = 92,883.54/349.79
  6. Step 6: Final answer
    x = 265.54

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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.