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Finding the Fourth Proportional to 269,448.70, 403,735.65 and 169,429.90

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Solution

The fourth proportional to 269,448.70, 403,735.65 and 169,429.90 is: 253,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,448.70 : 403,735.65 = 169,429.90 : x
  2. Step 2: Convert to fraction form
    269,448.70/403,735.65 = 169,429.90/x
  3. Step 3: Cross multiply
    269,448.70x = 403,735.65 × 169,429.90
  4. Step 4: Simplify right side
    269,448.70x = 68,404,890,805.94
  5. Step 5: Solve for x
    x = 68,404,890,805.94/269,448.70
  6. Step 6: Final answer
    x = 253,869.81

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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.