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Finding the Fourth Proportional to 219,333.72, 329,105.18 and 119,491.71

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Solution

The fourth proportional to 219,333.72, 329,105.18 and 119,491.71 is: 179,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,333.72 : 329,105.18 = 119,491.71 : x
  2. Step 2: Convert to fraction form
    219,333.72/329,105.18 = 119,491.71/x
  3. Step 3: Cross multiply
    219,333.72x = 329,105.18 × 119,491.71
  4. Step 4: Simplify right side
    219,333.72x = 39,325,339,120.50
  5. Step 5: Solve for x
    x = 39,325,339,120.50/219,333.72
  6. Step 6: Final answer
    x = 179,294.54

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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.