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Finding the Fourth Proportional to 202,556.67, 279,524.79 and 111,916.41

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Solution

The fourth proportional to 202,556.67, 279,524.79 and 111,916.41 is: 154,442.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,556.67 : 279,524.79 = 111,916.41 : x
  2. Step 2: Convert to fraction form
    202,556.67/279,524.79 = 111,916.41/x
  3. Step 3: Cross multiply
    202,556.67x = 279,524.79 × 111,916.41
  4. Step 4: Simplify right side
    202,556.67x = 31,283,411,002.80
  5. Step 5: Solve for x
    x = 31,283,411,002.80/202,556.67
  6. Step 6: Final answer
    x = 154,442.76

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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.