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Finding the Fourth Proportional to 272,469.60, 408,315.60 and 200,833.20

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Solution

The fourth proportional to 272,469.60, 408,315.60 and 200,833.20 is: 300,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,469.60 : 408,315.60 = 200,833.20 : x
  2. Step 2: Convert to fraction form
    272,469.60/408,315.60 = 200,833.20/x
  3. Step 3: Cross multiply
    272,469.60x = 408,315.60 × 200,833.20
  4. Step 4: Simplify right side
    272,469.60x = 82,003,328,557.92
  5. Step 5: Solve for x
    x = 82,003,328,557.92/272,469.60
  6. Step 6: Final answer
    x = 300,963.22

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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.