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Finding the Fourth Proportional to 255.34, 383.42 and 173.33

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Solution

The fourth proportional to 255.34, 383.42 and 173.33 is: 260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.34 : 383.42 = 173.33 : x
  2. Step 2: Convert to fraction form
    255.34/383.42 = 173.33/x
  3. Step 3: Cross multiply
    255.34x = 383.42 × 173.33
  4. Step 4: Simplify right side
    255.34x = 66,458.19
  5. Step 5: Solve for x
    x = 66,458.19/255.34
  6. Step 6: Final answer
    x = 260.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.