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Finding the Fourth Proportional to 300,580.86, 450,940.41 and 90,222.78

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Solution

The fourth proportional to 300,580.86, 450,940.41 and 90,222.78 is: 135,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,580.86 : 450,940.41 = 90,222.78 : x
  2. Step 2: Convert to fraction form
    300,580.86/450,940.41 = 90,222.78/x
  3. Step 3: Cross multiply
    300,580.86x = 450,940.41 × 90,222.78
  4. Step 4: Simplify right side
    300,580.86x = 40,685,097,404.54
  5. Step 5: Solve for x
    x = 40,685,097,404.54/300,580.86
  6. Step 6: Final answer
    x = 135,354.92

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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.