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Finding the Fourth Proportional to 222,556.88, 306,960.96 and 154,573.94

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Solution

The fourth proportional to 222,556.88, 306,960.96 and 154,573.94 is: 213,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,556.88 : 306,960.96 = 154,573.94 : x
  2. Step 2: Convert to fraction form
    222,556.88/306,960.96 = 154,573.94/x
  3. Step 3: Cross multiply
    222,556.88x = 306,960.96 × 154,573.94
  4. Step 4: Simplify right side
    222,556.88x = 47,448,165,013.38
  5. Step 5: Solve for x
    x = 47,448,165,013.38/222,556.88
  6. Step 6: Final answer
    x = 213,195.68

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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.