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Finding the Fourth Proportional to 441.66, 609.75 and 308.82

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Solution

The fourth proportional to 441.66, 609.75 and 308.82 is: 426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.66 : 609.75 = 308.82 : x
  2. Step 2: Convert to fraction form
    441.66/609.75 = 308.82/x
  3. Step 3: Cross multiply
    441.66x = 609.75 × 308.82
  4. Step 4: Simplify right side
    441.66x = 188,303.00
  5. Step 5: Solve for x
    x = 188,303.00/441.66
  6. Step 6: Final answer
    x = 426.35

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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.