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Finding the Fourth Proportional to 226,978.30, 340,661.85 and 100,812.70

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Solution

The fourth proportional to 226,978.30, 340,661.85 and 100,812.70 is: 151,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,978.30 : 340,661.85 = 100,812.70 : x
  2. Step 2: Convert to fraction form
    226,978.30/340,661.85 = 100,812.70/x
  3. Step 3: Cross multiply
    226,978.30x = 340,661.85 × 100,812.70
  4. Step 4: Simplify right side
    226,978.30x = 34,343,040,885.50
  5. Step 5: Solve for x
    x = 34,343,040,885.50/226,978.30
  6. Step 6: Final answer
    x = 151,305.39

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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.