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Finding the Fourth Proportional to 424.63, 637.37 and 251.47

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Solution

The fourth proportional to 424.63, 637.37 and 251.47 is: 377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.63 : 637.37 = 251.47 : x
  2. Step 2: Convert to fraction form
    424.63/637.37 = 251.47/x
  3. Step 3: Cross multiply
    424.63x = 637.37 × 251.47
  4. Step 4: Simplify right side
    424.63x = 160,281.33
  5. Step 5: Solve for x
    x = 160,281.33/424.63
  6. Step 6: Final answer
    x = 377.46

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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.