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Finding the Fourth Proportional to 627.44, 865.88 and 365.47

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Solution

The fourth proportional to 627.44, 865.88 and 365.47 is: 504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.44 : 865.88 = 365.47 : x
  2. Step 2: Convert to fraction form
    627.44/865.88 = 365.47/x
  3. Step 3: Cross multiply
    627.44x = 865.88 × 365.47
  4. Step 4: Simplify right side
    627.44x = 316,451.79
  5. Step 5: Solve for x
    x = 316,451.79/627.44
  6. Step 6: Final answer
    x = 504.36

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Double scale
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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.