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Finding the Fourth Proportional to 627.48, 940.92 and 353.08

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Solution

The fourth proportional to 627.48, 940.92 and 353.08 is: 529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.48 : 940.92 = 353.08 : x
  2. Step 2: Convert to fraction form
    627.48/940.92 = 353.08/x
  3. Step 3: Cross multiply
    627.48x = 940.92 × 353.08
  4. Step 4: Simplify right side
    627.48x = 332,220.03
  5. Step 5: Solve for x
    x = 332,220.03/627.48
  6. Step 6: Final answer
    x = 529.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.