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Finding the Fourth Proportional to 397,672.89, 548,801.55 and 227,939.05

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Solution

The fourth proportional to 397,672.89, 548,801.55 and 227,939.05 is: 314,563.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,672.89 : 548,801.55 = 227,939.05 : x
  2. Step 2: Convert to fraction form
    397,672.89/548,801.55 = 227,939.05/x
  3. Step 3: Cross multiply
    397,672.89x = 548,801.55 × 227,939.05
  4. Step 4: Simplify right side
    397,672.89x = 125,093,302,805.83
  5. Step 5: Solve for x
    x = 125,093,302,805.83/397,672.89
  6. Step 6: Final answer
    x = 314,563.32

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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.