Home / 274,828.92-379,274.79-153,971.20

Finding the Fourth Proportional to 274,828.92, 379,274.79 and 153,971.20

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Solution

The fourth proportional to 274,828.92, 379,274.79 and 153,971.20 is: 212,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,828.92 : 379,274.79 = 153,971.20 : x
  2. Step 2: Convert to fraction form
    274,828.92/379,274.79 = 153,971.20/x
  3. Step 3: Cross multiply
    274,828.92x = 379,274.79 × 153,971.20
  4. Step 4: Simplify right side
    274,828.92x = 58,397,394,546.05
  5. Step 5: Solve for x
    x = 58,397,394,546.05/274,828.92
  6. Step 6: Final answer
    x = 212,486.35

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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.