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Finding the Fourth Proportional to 350.97, 484.37 and 288.63

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Solution

The fourth proportional to 350.97, 484.37 and 288.63 is: 398.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.97 : 484.37 = 288.63 : x
  2. Step 2: Convert to fraction form
    350.97/484.37 = 288.63/x
  3. Step 3: Cross multiply
    350.97x = 484.37 × 288.63
  4. Step 4: Simplify right side
    350.97x = 139,802.27
  5. Step 5: Solve for x
    x = 139,802.27/350.97
  6. Step 6: Final answer
    x = 398.33

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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.