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Finding the Fourth Proportional to 383,447.70, 575,171.55 and 223,359.30

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Solution

The fourth proportional to 383,447.70, 575,171.55 and 223,359.30 is: 335,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,447.70 : 575,171.55 = 223,359.30 : x
  2. Step 2: Convert to fraction form
    383,447.70/575,171.55 = 223,359.30/x
  3. Step 3: Cross multiply
    383,447.70x = 575,171.55 × 223,359.30
  4. Step 4: Simplify right side
    383,447.70x = 128,469,914,787.92
  5. Step 5: Solve for x
    x = 128,469,914,787.92/383,447.70
  6. Step 6: Final answer
    x = 335,038.95

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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.