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Finding the Fourth Proportional to 226,715.20, 340,072.80 and 200,471.20

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Solution

The fourth proportional to 226,715.20, 340,072.80 and 200,471.20 is: 300,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,715.20 : 340,072.80 = 200,471.20 : x
  2. Step 2: Convert to fraction form
    226,715.20/340,072.80 = 200,471.20/x
  3. Step 3: Cross multiply
    226,715.20x = 340,072.80 × 200,471.20
  4. Step 4: Simplify right side
    226,715.20x = 68,174,802,303.36
  5. Step 5: Solve for x
    x = 68,174,802,303.36/226,715.20
  6. Step 6: Final answer
    x = 300,706.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.