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Finding the Fourth Proportional to 382,954, 528,488.68 and 239,668.24

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Solution

The fourth proportional to 382,954, 528,488.68 and 239,668.24 is: 330,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,954 : 528,488.68 = 239,668.24 : x
  2. Step 2: Convert to fraction form
    382,954/528,488.68 = 239,668.24/x
  3. Step 3: Cross multiply
    382,954x = 528,488.68 × 239,668.24
  4. Step 4: Simplify right side
    382,954x = 126,661,951,795.52
  5. Step 5: Solve for x
    x = 126,661,951,795.52/382,954
  6. Step 6: Final answer
    x = 330,749.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.