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Finding the Fourth Proportional to 315,489.33, 435,413.48 and 179,556.35

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Solution

The fourth proportional to 315,489.33, 435,413.48 and 179,556.35 is: 247,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,489.33 : 435,413.48 = 179,556.35 : x
  2. Step 2: Convert to fraction form
    315,489.33/435,413.48 = 179,556.35/x
  3. Step 3: Cross multiply
    315,489.33x = 435,413.48 × 179,556.35
  4. Step 4: Simplify right side
    315,489.33x = 78,181,252,134.75
  5. Step 5: Solve for x
    x = 78,181,252,134.75/315,489.33
  6. Step 6: Final answer
    x = 247,809.50

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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.