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Finding the Fourth Proportional to 439.42, 606.41 and 292.33

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Solution

The fourth proportional to 439.42, 606.41 and 292.33 is: 403.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.42 : 606.41 = 292.33 : x
  2. Step 2: Convert to fraction form
    439.42/606.41 = 292.33/x
  3. Step 3: Cross multiply
    439.42x = 606.41 × 292.33
  4. Step 4: Simplify right side
    439.42x = 177,269.53
  5. Step 5: Solve for x
    x = 177,269.53/439.42
  6. Step 6: Final answer
    x = 403.41

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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.