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Finding the Fourth Proportional to 323,881.39, 485,804.56 and 99,242.47

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Solution

The fourth proportional to 323,881.39, 485,804.56 and 99,242.47 is: 148,858.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,881.39 : 485,804.56 = 99,242.47 : x
  2. Step 2: Convert to fraction form
    323,881.39/485,804.56 = 99,242.47/x
  3. Step 3: Cross multiply
    323,881.39x = 485,804.56 × 99,242.47
  4. Step 4: Simplify right side
    323,881.39x = 48,212,442,563.36
  5. Step 5: Solve for x
    x = 48,212,442,563.36/323,881.39
  6. Step 6: Final answer
    x = 148,858.33

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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.