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Finding the Fourth Proportional to 326,574.38, 489,879.83 and 101,965.84

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Solution

The fourth proportional to 326,574.38, 489,879.83 and 101,965.84 is: 152,954.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,574.38 : 489,879.83 = 101,965.84 : x
  2. Step 2: Convert to fraction form
    326,574.38/489,879.83 = 101,965.84/x
  3. Step 3: Cross multiply
    326,574.38x = 489,879.83 × 101,965.84
  4. Step 4: Simplify right side
    326,574.38x = 49,951,008,365.01
  5. Step 5: Solve for x
    x = 49,951,008,365.01/326,574.38
  6. Step 6: Final answer
    x = 152,954.46

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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.