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Finding the Fourth Proportional to 321,388.29, 481,662.59 and 179,227.89

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Solution

The fourth proportional to 321,388.29, 481,662.59 and 179,227.89 is: 268,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,388.29 : 481,662.59 = 179,227.89 : x
  2. Step 2: Convert to fraction form
    321,388.29/481,662.59 = 179,227.89/x
  3. Step 3: Cross multiply
    321,388.29x = 481,662.59 × 179,227.89
  4. Step 4: Simplify right side
    321,388.29x = 86,327,368,801.50
  5. Step 5: Solve for x
    x = 86,327,368,801.50/321,388.29
  6. Step 6: Final answer
    x = 268,607.70

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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.