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Finding the Fourth Proportional to 274,955.88, 379,443.60 and 154,124.04

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Solution

The fourth proportional to 274,955.88, 379,443.60 and 154,124.04 is: 212,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,955.88 : 379,443.60 = 154,124.04 : x
  2. Step 2: Convert to fraction form
    274,955.88/379,443.60 = 154,124.04/x
  3. Step 3: Cross multiply
    274,955.88x = 379,443.60 × 154,124.04
  4. Step 4: Simplify right side
    274,955.88x = 58,481,380,584.14
  5. Step 5: Solve for x
    x = 58,481,380,584.14/274,955.88
  6. Step 6: Final answer
    x = 212,693.69

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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.