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Finding the Fourth Proportional to 351.07, 484.48 and 193.71

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Solution

The fourth proportional to 351.07, 484.48 and 193.71 is: 267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.07 : 484.48 = 193.71 : x
  2. Step 2: Convert to fraction form
    351.07/484.48 = 193.71/x
  3. Step 3: Cross multiply
    351.07x = 484.48 × 193.71
  4. Step 4: Simplify right side
    351.07x = 93,846.20
  5. Step 5: Solve for x
    x = 93,846.20/351.07
  6. Step 6: Final answer
    x = 267.31

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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.