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Finding the Fourth Proportional to 227,115.40, 340,673.10 and 143,134.60

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Solution

The fourth proportional to 227,115.40, 340,673.10 and 143,134.60 is: 214,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,115.40 : 340,673.10 = 143,134.60 : x
  2. Step 2: Convert to fraction form
    227,115.40/340,673.10 = 143,134.60/x
  3. Step 3: Cross multiply
    227,115.40x = 340,673.10 × 143,134.60
  4. Step 4: Simplify right side
    227,115.40x = 48,762,107,899.26
  5. Step 5: Solve for x
    x = 48,762,107,899.26/227,115.40
  6. Step 6: Final answer
    x = 214,701.90

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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.