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Finding the Fourth Proportional to 252,807.39, 379,212.49 and 84,327.25

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Solution

The fourth proportional to 252,807.39, 379,212.49 and 84,327.25 is: 126,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,807.39 : 379,212.49 = 84,327.25 : x
  2. Step 2: Convert to fraction form
    252,807.39/379,212.49 = 84,327.25/x
  3. Step 3: Cross multiply
    252,807.39x = 379,212.49 × 84,327.25
  4. Step 4: Simplify right side
    252,807.39x = 31,977,946,447.35
  5. Step 5: Solve for x
    x = 31,977,946,447.35/252,807.39
  6. Step 6: Final answer
    x = 126,491.34

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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.