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Finding the Fourth Proportional to 637.48, 955.79 and 226.39

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Solution

The fourth proportional to 637.48, 955.79 and 226.39 is: 339.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.48 : 955.79 = 226.39 : x
  2. Step 2: Convert to fraction form
    637.48/955.79 = 226.39/x
  3. Step 3: Cross multiply
    637.48x = 955.79 × 226.39
  4. Step 4: Simplify right side
    637.48x = 216,379.43
  5. Step 5: Solve for x
    x = 216,379.43/637.48
  6. Step 6: Final answer
    x = 339.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.