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Finding the Fourth Proportional to 255,745.08, 352,915.38 and 142,545.96

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Solution

The fourth proportional to 255,745.08, 352,915.38 and 142,545.96 is: 196,706.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,745.08 : 352,915.38 = 142,545.96 : x
  2. Step 2: Convert to fraction form
    255,745.08/352,915.38 = 142,545.96/x
  3. Step 3: Cross multiply
    255,745.08x = 352,915.38 × 142,545.96
  4. Step 4: Simplify right side
    255,745.08x = 50,306,661,640.86
  5. Step 5: Solve for x
    x = 50,306,661,640.86/255,745.08
  6. Step 6: Final answer
    x = 196,706.27

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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.