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Finding the Fourth Proportional to 264,672.63, 396,967.23 and 219,980.88

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Solution

The fourth proportional to 264,672.63, 396,967.23 and 219,980.88 is: 329,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,672.63 : 396,967.23 = 219,980.88 : x
  2. Step 2: Convert to fraction form
    264,672.63/396,967.23 = 219,980.88/x
  3. Step 3: Cross multiply
    264,672.63x = 396,967.23 × 219,980.88
  4. Step 4: Simplify right side
    264,672.63x = 87,325,200,586.56
  5. Step 5: Solve for x
    x = 87,325,200,586.56/264,672.63
  6. Step 6: Final answer
    x = 329,936.65

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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.