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Finding the Fourth Proportional to 268,930.69, 371,124.36 and 149,698.69

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Solution

The fourth proportional to 268,930.69, 371,124.36 and 149,698.69 is: 206,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,930.69 : 371,124.36 = 149,698.69 : x
  2. Step 2: Convert to fraction form
    268,930.69/371,124.36 = 149,698.69/x
  3. Step 3: Cross multiply
    268,930.69x = 371,124.36 × 149,698.69
  4. Step 4: Simplify right side
    268,930.69x = 55,556,829,591.28
  5. Step 5: Solve for x
    x = 55,556,829,591.28/268,930.69
  6. Step 6: Final answer
    x = 206,584.20

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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.