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Finding the Fourth Proportional to 627.30, 865.52 and 365.16

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Solution

The fourth proportional to 627.30, 865.52 and 365.16 is: 503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.30 : 865.52 = 365.16 : x
  2. Step 2: Convert to fraction form
    627.30/865.52 = 365.16/x
  3. Step 3: Cross multiply
    627.30x = 865.52 × 365.16
  4. Step 4: Simplify right side
    627.30x = 316,053.28
  5. Step 5: Solve for x
    x = 316,053.28/627.30
  6. Step 6: Final answer
    x = 503.83

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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.