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Finding the Fourth Proportional to 252,940.80, 379,461.01 and 75,443.88

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Solution

The fourth proportional to 252,940.80, 379,461.01 and 75,443.88 is: 113,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,940.80 : 379,461.01 = 75,443.88 : x
  2. Step 2: Convert to fraction form
    252,940.80/379,461.01 = 75,443.88/x
  3. Step 3: Cross multiply
    252,940.80x = 379,461.01 × 75,443.88
  4. Step 4: Simplify right side
    252,940.80x = 28,628,010,903.12
  5. Step 5: Solve for x
    x = 28,628,010,903.12/252,940.80
  6. Step 6: Final answer
    x = 113,180.68

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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.