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Finding the Fourth Proportional to 321,581.44, 480,029.96 and 297,864.64

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Solution

The fourth proportional to 321,581.44, 480,029.96 and 297,864.64 is: 444,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,581.44 : 480,029.96 = 297,864.64 : x
  2. Step 2: Convert to fraction form
    321,581.44/480,029.96 = 297,864.64/x
  3. Step 3: Cross multiply
    321,581.44x = 480,029.96 × 297,864.64
  4. Step 4: Simplify right side
    321,581.44x = 142,983,951,224.61
  5. Step 5: Solve for x
    x = 142,983,951,224.61/321,581.44
  6. Step 6: Final answer
    x = 444,627.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.