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Finding the Fourth Proportional to 439.39, 606.36 and 262.41

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Solution

The fourth proportional to 439.39, 606.36 and 262.41 is: 362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.39 : 606.36 = 262.41 : x
  2. Step 2: Convert to fraction form
    439.39/606.36 = 262.41/x
  3. Step 3: Cross multiply
    439.39x = 606.36 × 262.41
  4. Step 4: Simplify right side
    439.39x = 159,114.93
  5. Step 5: Solve for x
    x = 159,114.93/439.39
  6. Step 6: Final answer
    x = 362.13

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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.