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Finding the Fourth Proportional to 626.89, 864.99 and 364.84

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Solution

The fourth proportional to 626.89, 864.99 and 364.84 is: 503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.89 : 864.99 = 364.84 : x
  2. Step 2: Convert to fraction form
    626.89/864.99 = 364.84/x
  3. Step 3: Cross multiply
    626.89x = 864.99 × 364.84
  4. Step 4: Simplify right side
    626.89x = 315,582.95
  5. Step 5: Solve for x
    x = 315,582.95/626.89
  6. Step 6: Final answer
    x = 503.41

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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.