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Finding the Fourth Proportional to 626.25, 864.23 and 364.28

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Solution

The fourth proportional to 626.25, 864.23 and 364.28 is: 502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.25 : 864.23 = 364.28 : x
  2. Step 2: Convert to fraction form
    626.25/864.23 = 364.28/x
  3. Step 3: Cross multiply
    626.25x = 864.23 × 364.28
  4. Step 4: Simplify right side
    626.25x = 314,821.70
  5. Step 5: Solve for x
    x = 314,821.70/626.25
  6. Step 6: Final answer
    x = 502.71

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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.