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Finding the Fourth Proportional to 252,991.89, 379,487.48 and 66,003.39

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Solution

The fourth proportional to 252,991.89, 379,487.48 and 66,003.39 is: 99,004.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,991.89 : 379,487.48 = 66,003.39 : x
  2. Step 2: Convert to fraction form
    252,991.89/379,487.48 = 66,003.39/x
  3. Step 3: Cross multiply
    252,991.89x = 379,487.48 × 66,003.39
  4. Step 4: Simplify right side
    252,991.89x = 25,047,459,812.54
  5. Step 5: Solve for x
    x = 25,047,459,812.54/252,991.89
  6. Step 6: Final answer
    x = 99,004.99

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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.