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Finding the Fourth Proportional to 320,791.73, 481,810.37 and 236,217.87

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Solution

The fourth proportional to 320,791.73, 481,810.37 and 236,217.87 is: 354,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,791.73 : 481,810.37 = 236,217.87 : x
  2. Step 2: Convert to fraction form
    320,791.73/481,810.37 = 236,217.87/x
  3. Step 3: Cross multiply
    320,791.73x = 481,810.37 × 236,217.87
  4. Step 4: Simplify right side
    320,791.73x = 113,812,219,345.31
  5. Step 5: Solve for x
    x = 113,812,219,345.31/320,791.73
  6. Step 6: Final answer
    x = 354,785.40

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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.