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Finding the Fourth Proportional to 351,753.44, 485,443.56 and 198,738.56

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Solution

The fourth proportional to 351,753.44, 485,443.56 and 198,738.56 is: 274,272.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,753.44 : 485,443.56 = 198,738.56 : x
  2. Step 2: Convert to fraction form
    351,753.44/485,443.56 = 198,738.56/x
  3. Step 3: Cross multiply
    351,753.44x = 485,443.56 × 198,738.56
  4. Step 4: Simplify right side
    351,753.44x = 96,476,354,075.67
  5. Step 5: Solve for x
    x = 96,476,354,075.67/351,753.44
  6. Step 6: Final answer
    x = 274,272.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.