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Finding the Fourth Proportional to 359,078.89, 494,857.60 and 268,274.65

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Solution

The fourth proportional to 359,078.89, 494,857.60 and 268,274.65 is: 369,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,078.89 : 494,857.60 = 268,274.65 : x
  2. Step 2: Convert to fraction form
    359,078.89/494,857.60 = 268,274.65/x
  3. Step 3: Cross multiply
    359,078.89x = 494,857.60 × 268,274.65
  4. Step 4: Simplify right side
    359,078.89x = 132,757,749,439.84
  5. Step 5: Solve for x
    x = 132,757,749,439.84/359,078.89
  6. Step 6: Final answer
    x = 369,717.50

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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.