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Finding the Fourth Proportional to 425.34, 637.82 and 151.36

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Solution

The fourth proportional to 425.34, 637.82 and 151.36 is: 226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.34 : 637.82 = 151.36 : x
  2. Step 2: Convert to fraction form
    425.34/637.82 = 151.36/x
  3. Step 3: Cross multiply
    425.34x = 637.82 × 151.36
  4. Step 4: Simplify right side
    425.34x = 96,540.44
  5. Step 5: Solve for x
    x = 96,540.44/425.34
  6. Step 6: Final answer
    x = 226.97

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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.