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Finding the Fourth Proportional to 269,747.50, 404,640.70 and 103,535.50

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Solution

The fourth proportional to 269,747.50, 404,640.70 and 103,535.50 is: 155,310.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,747.50 : 404,640.70 = 103,535.50 : x
  2. Step 2: Convert to fraction form
    269,747.50/404,640.70 = 103,535.50/x
  3. Step 3: Cross multiply
    269,747.50x = 404,640.70 × 103,535.50
  4. Step 4: Simplify right side
    269,747.50x = 41,894,677,194.85
  5. Step 5: Solve for x
    x = 41,894,677,194.85/269,747.50
  6. Step 6: Final answer
    x = 155,310.72

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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.