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Finding the Fourth Proportional to 265.05, 365.63 and 171.68

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Solution

The fourth proportional to 265.05, 365.63 and 171.68 is: 236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.05 : 365.63 = 171.68 : x
  2. Step 2: Convert to fraction form
    265.05/365.63 = 171.68/x
  3. Step 3: Cross multiply
    265.05x = 365.63 × 171.68
  4. Step 4: Simplify right side
    265.05x = 62,769.96
  5. Step 5: Solve for x
    x = 62,769.96/265.05
  6. Step 6: Final answer
    x = 236.82

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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.