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Finding the Fourth Proportional to 251,592.75, 347,198.00 and 138,413.07

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Solution

The fourth proportional to 251,592.75, 347,198.00 and 138,413.07 is: 191,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,592.75 : 347,198.00 = 138,413.07 : x
  2. Step 2: Convert to fraction form
    251,592.75/347,198.00 = 138,413.07/x
  3. Step 3: Cross multiply
    251,592.75x = 347,198.00 × 138,413.07
  4. Step 4: Simplify right side
    251,592.75x = 48,056,740,385.79
  5. Step 5: Solve for x
    x = 48,056,740,385.79/251,592.75
  6. Step 6: Final answer
    x = 191,010.04

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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.