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Finding the Fourth Proportional to 328,491.57, 492,584.03 and 170,677.65

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Solution

The fourth proportional to 328,491.57, 492,584.03 and 170,677.65 is: 255,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,491.57 : 492,584.03 = 170,677.65 : x
  2. Step 2: Convert to fraction form
    328,491.57/492,584.03 = 170,677.65/x
  3. Step 3: Cross multiply
    328,491.57x = 492,584.03 × 170,677.65
  4. Step 4: Simplify right side
    328,491.57x = 84,073,083,814.54
  5. Step 5: Solve for x
    x = 84,073,083,814.54/328,491.57
  6. Step 6: Final answer
    x = 255,936.81

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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.