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Finding the Fourth Proportional to 252,334.11, 378,348.71 and 100,554.54

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Solution

The fourth proportional to 252,334.11, 378,348.71 and 100,554.54 is: 150,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,334.11 : 378,348.71 = 100,554.54 : x
  2. Step 2: Convert to fraction form
    252,334.11/378,348.71 = 100,554.54/x
  3. Step 3: Cross multiply
    252,334.11x = 378,348.71 × 100,554.54
  4. Step 4: Simplify right side
    252,334.11x = 38,044,680,745.03
  5. Step 5: Solve for x
    x = 38,044,680,745.03/252,334.11
  6. Step 6: Final answer
    x = 150,771.06

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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.