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Finding the Fourth Proportional to 626.16, 863.96 and 364.20

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Solution

The fourth proportional to 626.16, 863.96 and 364.20 is: 502.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.16 : 863.96 = 364.20 : x
  2. Step 2: Convert to fraction form
    626.16/863.96 = 364.20/x
  3. Step 3: Cross multiply
    626.16x = 863.96 × 364.20
  4. Step 4: Simplify right side
    626.16x = 314,654.23
  5. Step 5: Solve for x
    x = 314,654.23/626.16
  6. Step 6: Final answer
    x = 502.51

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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.