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Finding the Fourth Proportional to 300,252.76, 449,880.86 and 211,319.44

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Solution

The fourth proportional to 300,252.76, 449,880.86 and 211,319.44 is: 316,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,252.76 : 449,880.86 = 211,319.44 : x
  2. Step 2: Convert to fraction form
    300,252.76/449,880.86 = 211,319.44/x
  3. Step 3: Cross multiply
    300,252.76x = 449,880.86 × 211,319.44
  4. Step 4: Simplify right side
    300,252.76x = 95,068,570,805.51
  5. Step 5: Solve for x
    x = 95,068,570,805.51/300,252.76
  6. Step 6: Final answer
    x = 316,628.47

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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.