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Finding the Fourth Proportional to 439.60, 606.60 and 262.54

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Solution

The fourth proportional to 439.60, 606.60 and 262.54 is: 362.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.60 : 606.60 = 262.54 : x
  2. Step 2: Convert to fraction form
    439.60/606.60 = 262.54/x
  3. Step 3: Cross multiply
    439.60x = 606.60 × 262.54
  4. Step 4: Simplify right side
    439.60x = 159,257.89
  5. Step 5: Solve for x
    x = 159,257.89/439.60
  6. Step 6: Final answer
    x = 362.28

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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.