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Finding the Fourth Proportional to 219,143.33, 328,917.07 and 111,148.49

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Solution

The fourth proportional to 219,143.33, 328,917.07 and 111,148.49 is: 166,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,143.33 : 328,917.07 = 111,148.49 : x
  2. Step 2: Convert to fraction form
    219,143.33/328,917.07 = 111,148.49/x
  3. Step 3: Cross multiply
    219,143.33x = 328,917.07 × 111,148.49
  4. Step 4: Simplify right side
    219,143.33x = 36,558,635,109.98
  5. Step 5: Solve for x
    x = 36,558,635,109.98/219,143.33
  6. Step 6: Final answer
    x = 166,825.22

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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.