Home / 326,335.08-489,212.70-115,945.32

Finding the Fourth Proportional to 326,335.08, 489,212.70 and 115,945.32

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Solution

The fourth proportional to 326,335.08, 489,212.70 and 115,945.32 is: 173,814.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,335.08 : 489,212.70 = 115,945.32 : x
  2. Step 2: Convert to fraction form
    326,335.08/489,212.70 = 115,945.32/x
  3. Step 3: Cross multiply
    326,335.08x = 489,212.70 × 115,945.32
  4. Step 4: Simplify right side
    326,335.08x = 56,721,923,049.56
  5. Step 5: Solve for x
    x = 56,721,923,049.56/326,335.08
  6. Step 6: Final answer
    x = 173,814.97

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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.