Home / 328,738.66-493,141.98-104,129.68

Finding the Fourth Proportional to 328,738.66, 493,141.98 and 104,129.68

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Solution

The fourth proportional to 328,738.66, 493,141.98 and 104,129.68 is: 156,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,738.66 : 493,141.98 = 104,129.68 : x
  2. Step 2: Convert to fraction form
    328,738.66/493,141.98 = 104,129.68/x
  3. Step 3: Cross multiply
    328,738.66x = 493,141.98 × 104,129.68
  4. Step 4: Simplify right side
    328,738.66x = 51,350,716,571.97
  5. Step 5: Solve for x
    x = 51,350,716,571.97/328,738.66
  6. Step 6: Final answer
    x = 156,205.29

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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.