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Finding the Fourth Proportional to 299,884.08, 449,900 and 211,310.60

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Solution

The fourth proportional to 299,884.08, 449,900 and 211,310.60 is: 317,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,884.08 : 449,900 = 211,310.60 : x
  2. Step 2: Convert to fraction form
    299,884.08/449,900 = 211,310.60/x
  3. Step 3: Cross multiply
    299,884.08x = 449,900 × 211,310.60
  4. Step 4: Simplify right side
    299,884.08x = 95,068,638,940
  5. Step 5: Solve for x
    x = 95,068,638,940/299,884.08
  6. Step 6: Final answer
    x = 317,017.96

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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.