Home / 326,234.32-489,105.27-213,942.81

Finding the Fourth Proportional to 326,234.32, 489,105.27 and 213,942.81

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Solution

The fourth proportional to 326,234.32, 489,105.27 and 213,942.81 is: 320,752.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,234.32 : 489,105.27 = 213,942.81 : x
  2. Step 2: Convert to fraction form
    326,234.32/489,105.27 = 213,942.81/x
  3. Step 3: Cross multiply
    326,234.32x = 489,105.27 × 213,942.81
  4. Step 4: Simplify right side
    326,234.32x = 104,640,555,849.61
  5. Step 5: Solve for x
    x = 104,640,555,849.61/326,234.32
  6. Step 6: Final answer
    x = 320,752.75

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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.