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Finding the Fourth Proportional to 469.72, 704.58 and 226.27

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Solution

The fourth proportional to 469.72, 704.58 and 226.27 is: 339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.72 : 704.58 = 226.27 : x
  2. Step 2: Convert to fraction form
    469.72/704.58 = 226.27/x
  3. Step 3: Cross multiply
    469.72x = 704.58 × 226.27
  4. Step 4: Simplify right side
    469.72x = 159,425.32
  5. Step 5: Solve for x
    x = 159,425.32/469.72
  6. Step 6: Final answer
    x = 339.41

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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.