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Finding the Fourth Proportional to 174.48, 260.66 and 130.35

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Solution

The fourth proportional to 174.48, 260.66 and 130.35 is: 194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.48 : 260.66 = 130.35 : x
  2. Step 2: Convert to fraction form
    174.48/260.66 = 130.35/x
  3. Step 3: Cross multiply
    174.48x = 260.66 × 130.35
  4. Step 4: Simplify right side
    174.48x = 33,976.38
  5. Step 5: Solve for x
    x = 33,976.38/174.48
  6. Step 6: Final answer
    x = 194.73

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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.