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Finding the Fourth Proportional to 320,699.64, 481,044.40 and 110,339.40

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Solution

The fourth proportional to 320,699.64, 481,044.40 and 110,339.40 is: 165,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,699.64 : 481,044.40 = 110,339.40 : x
  2. Step 2: Convert to fraction form
    320,699.64/481,044.40 = 110,339.40/x
  3. Step 3: Cross multiply
    320,699.64x = 481,044.40 × 110,339.40
  4. Step 4: Simplify right side
    320,699.64x = 53,078,150,469.36
  5. Step 5: Solve for x
    x = 53,078,150,469.36/320,699.64
  6. Step 6: Final answer
    x = 165,507.36

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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.