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Finding the Fourth Proportional to 441.51, 609.30 and 286.26

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Solution

The fourth proportional to 441.51, 609.30 and 286.26 is: 395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.51 : 609.30 = 286.26 : x
  2. Step 2: Convert to fraction form
    441.51/609.30 = 286.26/x
  3. Step 3: Cross multiply
    441.51x = 609.30 × 286.26
  4. Step 4: Simplify right side
    441.51x = 174,418.22
  5. Step 5: Solve for x
    x = 174,418.22/441.51
  6. Step 6: Final answer
    x = 395.05

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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.