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Finding the Fourth Proportional to 320,453.68, 481,169.76 and 271,179.76

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Solution

The fourth proportional to 320,453.68, 481,169.76 and 271,179.76 is: 407,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,453.68 : 481,169.76 = 271,179.76 : x
  2. Step 2: Convert to fraction form
    320,453.68/481,169.76 = 271,179.76/x
  3. Step 3: Cross multiply
    320,453.68x = 481,169.76 × 271,179.76
  4. Step 4: Simplify right side
    320,453.68x = 130,483,500,036.06
  5. Step 5: Solve for x
    x = 130,483,500,036.06/320,453.68
  6. Step 6: Final answer
    x = 407,183.65

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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.