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Finding the Fourth Proportional to 449,103.44, 619,761.48 and 247,898

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Solution

The fourth proportional to 449,103.44, 619,761.48 and 247,898 is: 342,098.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,103.44 : 619,761.48 = 247,898 : x
  2. Step 2: Convert to fraction form
    449,103.44/619,761.48 = 247,898/x
  3. Step 3: Cross multiply
    449,103.44x = 619,761.48 × 247,898
  4. Step 4: Simplify right side
    449,103.44x = 153,637,631,369.04
  5. Step 5: Solve for x
    x = 153,637,631,369.04/449,103.44
  6. Step 6: Final answer
    x = 342,098.54

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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.