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Finding the Fourth Proportional to 269,473.79, 371,861.22 and 154,672.70

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Solution

The fourth proportional to 269,473.79, 371,861.22 and 154,672.70 is: 213,441.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,473.79 : 371,861.22 = 154,672.70 : x
  2. Step 2: Convert to fraction form
    269,473.79/371,861.22 = 154,672.70/x
  3. Step 3: Cross multiply
    269,473.79x = 371,861.22 × 154,672.70
  4. Step 4: Simplify right side
    269,473.79x = 57,516,777,063.39
  5. Step 5: Solve for x
    x = 57,516,777,063.39/269,473.79
  6. Step 6: Final answer
    x = 213,441.09

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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.