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Finding the Fourth Proportional to 301.83, 416.50 and 170.82

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Solution

The fourth proportional to 301.83, 416.50 and 170.82 is: 235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.83 : 416.50 = 170.82 : x
  2. Step 2: Convert to fraction form
    301.83/416.50 = 170.82/x
  3. Step 3: Cross multiply
    301.83x = 416.50 × 170.82
  4. Step 4: Simplify right side
    301.83x = 71,143.59
  5. Step 5: Solve for x
    x = 71,143.59/301.83
  6. Step 6: Final answer
    x = 235.71

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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.