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Finding the Fourth Proportional to 236,843.48, 326,846.30 and 129,413.50

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Solution

The fourth proportional to 236,843.48, 326,846.30 and 129,413.50 is: 178,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,843.48 : 326,846.30 = 129,413.50 : x
  2. Step 2: Convert to fraction form
    236,843.48/326,846.30 = 129,413.50/x
  3. Step 3: Cross multiply
    236,843.48x = 326,846.30 × 129,413.50
  4. Step 4: Simplify right side
    236,843.48x = 42,298,323,645.05
  5. Step 5: Solve for x
    x = 42,298,323,645.05/236,843.48
  6. Step 6: Final answer
    x = 178,591.89

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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.