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Finding the Fourth Proportional to 275,112.45, 379,673.33 and 154,261.46

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Solution

The fourth proportional to 275,112.45, 379,673.33 and 154,261.46 is: 212,890.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,112.45 : 379,673.33 = 154,261.46 : x
  2. Step 2: Convert to fraction form
    275,112.45/379,673.33 = 154,261.46/x
  3. Step 3: Cross multiply
    275,112.45x = 379,673.33 × 154,261.46
  4. Step 4: Simplify right side
    275,112.45x = 58,568,962,386.74
  5. Step 5: Solve for x
    x = 58,568,962,386.74/275,112.45
  6. Step 6: Final answer
    x = 212,890.99

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