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Finding the Fourth Proportional to 353.60, 484.43 and 340.46

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Solution

The fourth proportional to 353.60, 484.43 and 340.46 is: 466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.60 : 484.43 = 340.46 : x
  2. Step 2: Convert to fraction form
    353.60/484.43 = 340.46/x
  3. Step 3: Cross multiply
    353.60x = 484.43 × 340.46
  4. Step 4: Simplify right side
    353.60x = 164,929.04
  5. Step 5: Solve for x
    x = 164,929.04/353.60
  6. Step 6: Final answer
    x = 466.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.