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Finding the Fourth Proportional to 219,651.75, 329,101.47 and 119,881.94

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Solution

The fourth proportional to 219,651.75, 329,101.47 and 119,881.94 is: 179,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,651.75 : 329,101.47 = 119,881.94 : x
  2. Step 2: Convert to fraction form
    219,651.75/329,101.47 = 119,881.94/x
  3. Step 3: Cross multiply
    219,651.75x = 329,101.47 × 119,881.94
  4. Step 4: Simplify right side
    219,651.75x = 39,453,321,034.94
  5. Step 5: Solve for x
    x = 39,453,321,034.94/219,651.75
  6. Step 6: Final answer
    x = 179,617.60

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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.