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Finding the Fourth Proportional to 272,456.84, 408,481.65 and 187,975.94

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Solution

The fourth proportional to 272,456.84, 408,481.65 and 187,975.94 is: 281,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,456.84 : 408,481.65 = 187,975.94 : x
  2. Step 2: Convert to fraction form
    272,456.84/408,481.65 = 187,975.94/x
  3. Step 3: Cross multiply
    272,456.84x = 408,481.65 × 187,975.94
  4. Step 4: Simplify right side
    272,456.84x = 76,784,720,089.09
  5. Step 5: Solve for x
    x = 76,784,720,089.09/272,456.84
  6. Step 6: Final answer
    x = 281,823.43

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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.