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Finding the Fourth Proportional to 626.58, 864.50 and 364.55

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Solution

The fourth proportional to 626.58, 864.50 and 364.55 is: 502.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.58 : 864.50 = 364.55 : x
  2. Step 2: Convert to fraction form
    626.58/864.50 = 364.55/x
  3. Step 3: Cross multiply
    626.58x = 864.50 × 364.55
  4. Step 4: Simplify right side
    626.58x = 315,147.33
  5. Step 5: Solve for x
    x = 315,147.33/626.58
  6. Step 6: Final answer
    x = 502.96

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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.