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Finding the Fourth Proportional to 269,249.60, 371,562.72 and 148,391

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Solution

The fourth proportional to 269,249.60, 371,562.72 and 148,391 is: 204,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,249.60 : 371,562.72 = 148,391 : x
  2. Step 2: Convert to fraction form
    269,249.60/371,562.72 = 148,391/x
  3. Step 3: Cross multiply
    269,249.60x = 371,562.72 × 148,391
  4. Step 4: Simplify right side
    269,249.60x = 55,136,563,583.52
  5. Step 5: Solve for x
    x = 55,136,563,583.52/269,249.60
  6. Step 6: Final answer
    x = 204,778.63

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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.