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Finding the Fourth Proportional to 269,721.70, 404,145.15 and 169,702.90

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Solution

The fourth proportional to 269,721.70, 404,145.15 and 169,702.90 is: 254,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,721.70 : 404,145.15 = 169,702.90 : x
  2. Step 2: Convert to fraction form
    269,721.70/404,145.15 = 169,702.90/x
  3. Step 3: Cross multiply
    269,721.70x = 404,145.15 × 169,702.90
  4. Step 4: Simplify right side
    269,721.70x = 68,584,603,975.94
  5. Step 5: Solve for x
    x = 68,584,603,975.94/269,721.70
  6. Step 6: Final answer
    x = 254,279.15

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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.