Home / 268,721.02-403,150.79-192,907.45

Finding the Fourth Proportional to 268,721.02, 403,150.79 and 192,907.45

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Solution

The fourth proportional to 268,721.02, 403,150.79 and 192,907.45 is: 289,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,721.02 : 403,150.79 = 192,907.45 : x
  2. Step 2: Convert to fraction form
    268,721.02/403,150.79 = 192,907.45/x
  3. Step 3: Cross multiply
    268,721.02x = 403,150.79 × 192,907.45
  4. Step 4: Simplify right side
    268,721.02x = 77,770,788,891.97
  5. Step 5: Solve for x
    x = 77,770,788,891.97/268,721.02
  6. Step 6: Final answer
    x = 289,410.89

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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.