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Finding the Fourth Proportional to 383,858.76, 529,726.02 and 214,103.88

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Solution

The fourth proportional to 383,858.76, 529,726.02 and 214,103.88 is: 295,463.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,858.76 : 529,726.02 = 214,103.88 : x
  2. Step 2: Convert to fraction form
    383,858.76/529,726.02 = 214,103.88/x
  3. Step 3: Cross multiply
    383,858.76x = 529,726.02 × 214,103.88
  4. Step 4: Simplify right side
    383,858.76x = 113,416,396,218.96
  5. Step 5: Solve for x
    x = 113,416,396,218.96/383,858.76
  6. Step 6: Final answer
    x = 295,463.87

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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.