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Finding the Fourth Proportional to 383,882.64, 529,759.88 and 211,800.60

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Solution

The fourth proportional to 383,882.64, 529,759.88 and 211,800.60 is: 292,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,882.64 : 529,759.88 = 211,800.60 : x
  2. Step 2: Convert to fraction form
    383,882.64/529,759.88 = 211,800.60/x
  3. Step 3: Cross multiply
    383,882.64x = 529,759.88 × 211,800.60
  4. Step 4: Simplify right side
    383,882.64x = 112,203,459,380.93
  5. Step 5: Solve for x
    x = 112,203,459,380.93/383,882.64
  6. Step 6: Final answer
    x = 292,285.84

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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.