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Finding the Fourth Proportional to 383,667.72, 529,461.78 and 213,898.44

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Solution

The fourth proportional to 383,667.72, 529,461.78 and 213,898.44 is: 295,180.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,667.72 : 529,461.78 = 213,898.44 : x
  2. Step 2: Convert to fraction form
    383,667.72/529,461.78 = 213,898.44/x
  3. Step 3: Cross multiply
    383,667.72x = 529,461.78 × 213,898.44
  4. Step 4: Simplify right side
    383,667.72x = 113,251,048,781.62
  5. Step 5: Solve for x
    x = 113,251,048,781.62/383,667.72
  6. Step 6: Final answer
    x = 295,180.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.