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Finding the Fourth Proportional to 202,461.73, 279,398.37 and 111,815.98

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Solution

The fourth proportional to 202,461.73, 279,398.37 and 111,815.98 is: 154,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,461.73 : 279,398.37 = 111,815.98 : x
  2. Step 2: Convert to fraction form
    202,461.73/279,398.37 = 111,815.98/x
  3. Step 3: Cross multiply
    202,461.73x = 279,398.37 × 111,815.98
  4. Step 4: Simplify right side
    202,461.73x = 31,241,202,551.95
  5. Step 5: Solve for x
    x = 31,241,202,551.95/202,461.73
  6. Step 6: Final answer
    x = 154,306.71

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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.