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Finding the Fourth Proportional to 174.40, 260.36 and 173.92

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Solution

The fourth proportional to 174.40, 260.36 and 173.92 is: 259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.40 : 260.36 = 173.92 : x
  2. Step 2: Convert to fraction form
    174.40/260.36 = 173.92/x
  3. Step 3: Cross multiply
    174.40x = 260.36 × 173.92
  4. Step 4: Simplify right side
    174.40x = 45,281.81
  5. Step 5: Solve for x
    x = 45,281.81/174.40
  6. Step 6: Final answer
    x = 259.64

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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.