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Finding the Fourth Proportional to 636.27, 878.04 and 370.59

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Solution

The fourth proportional to 636.27, 878.04 and 370.59 is: 511.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.27 : 878.04 = 370.59 : x
  2. Step 2: Convert to fraction form
    636.27/878.04 = 370.59/x
  3. Step 3: Cross multiply
    636.27x = 878.04 × 370.59
  4. Step 4: Simplify right side
    636.27x = 325,392.84
  5. Step 5: Solve for x
    x = 325,392.84/636.27
  6. Step 6: Final answer
    x = 511.41

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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.