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Finding the Fourth Proportional to 252,745.67, 379,111.19 and 102,948.90

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Solution

The fourth proportional to 252,745.67, 379,111.19 and 102,948.90 is: 154,420.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,745.67 : 379,111.19 = 102,948.90 : x
  2. Step 2: Convert to fraction form
    252,745.67/379,111.19 = 102,948.90/x
  3. Step 3: Cross multiply
    252,745.67x = 379,111.19 × 102,948.90
  4. Step 4: Simplify right side
    252,745.67x = 39,029,079,473.45
  5. Step 5: Solve for x
    x = 39,029,079,473.45/252,745.67
  6. Step 6: Final answer
    x = 154,420.37

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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.