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Finding the Fourth Proportional to 272,540.88, 376,021.76 and 154,648.48

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Solution

The fourth proportional to 272,540.88, 376,021.76 and 154,648.48 is: 213,366.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,540.88 : 376,021.76 = 154,648.48 : x
  2. Step 2: Convert to fraction form
    272,540.88/376,021.76 = 154,648.48/x
  3. Step 3: Cross multiply
    272,540.88x = 376,021.76 × 154,648.48
  4. Step 4: Simplify right side
    272,540.88x = 58,151,192,857.68
  5. Step 5: Solve for x
    x = 58,151,192,857.68/272,540.88
  6. Step 6: Final answer
    x = 213,366.87

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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.