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Finding the Fourth Proportional to 174.47, 259.83 and 165.15

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Solution

The fourth proportional to 174.47, 259.83 and 165.15 is: 245.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.47 : 259.83 = 165.15 : x
  2. Step 2: Convert to fraction form
    174.47/259.83 = 165.15/x
  3. Step 3: Cross multiply
    174.47x = 259.83 × 165.15
  4. Step 4: Simplify right side
    174.47x = 42,910.92
  5. Step 5: Solve for x
    x = 42,910.92/174.47
  6. Step 6: Final answer
    x = 245.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.