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Finding the Fourth Proportional to 637.45, 956.41 and 247.47

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Solution

The fourth proportional to 637.45, 956.41 and 247.47 is: 371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.45 : 956.41 = 247.47 : x
  2. Step 2: Convert to fraction form
    637.45/956.41 = 247.47/x
  3. Step 3: Cross multiply
    637.45x = 956.41 × 247.47
  4. Step 4: Simplify right side
    637.45x = 236,682.78
  5. Step 5: Solve for x
    x = 236,682.78/637.45
  6. Step 6: Final answer
    x = 371.30

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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.