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Finding the Fourth Proportional to 259.39, 357.62 and 160.97

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Solution

The fourth proportional to 259.39, 357.62 and 160.97 is: 221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.39 : 357.62 = 160.97 : x
  2. Step 2: Convert to fraction form
    259.39/357.62 = 160.97/x
  3. Step 3: Cross multiply
    259.39x = 357.62 × 160.97
  4. Step 4: Simplify right side
    259.39x = 57,567.39
  5. Step 5: Solve for x
    x = 57,567.39/259.39
  6. Step 6: Final answer
    x = 221.94

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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.