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Finding the Fourth Proportional to 274,607.44, 378,940.30 and 153,747.60

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Solution

The fourth proportional to 274,607.44, 378,940.30 and 153,747.60 is: 212,161.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,607.44 : 378,940.30 = 153,747.60 : x
  2. Step 2: Convert to fraction form
    274,607.44/378,940.30 = 153,747.60/x
  3. Step 3: Cross multiply
    274,607.44x = 378,940.30 × 153,747.60
  4. Step 4: Simplify right side
    274,607.44x = 58,261,161,668.28
  5. Step 5: Solve for x
    x = 58,261,161,668.28/274,607.44
  6. Step 6: Final answer
    x = 212,161.63

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1.5x scale

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.