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Finding the Fourth Proportional to 627.41, 865.79 and 365.38

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Solution

The fourth proportional to 627.41, 865.79 and 365.38 is: 504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.41 : 865.79 = 365.38 : x
  2. Step 2: Convert to fraction form
    627.41/865.79 = 365.38/x
  3. Step 3: Cross multiply
    627.41x = 865.79 × 365.38
  4. Step 4: Simplify right side
    627.41x = 316,339.73
  5. Step 5: Solve for x
    x = 316,339.73/627.41
  6. Step 6: Final answer
    x = 504.20

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Double scale
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1.5x scale

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.