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Finding the Fourth Proportional to 201,879.51, 303,099.48 and 102,109.92

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Solution

The fourth proportional to 201,879.51, 303,099.48 and 102,109.92 is: 153,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,879.51 : 303,099.48 = 102,109.92 : x
  2. Step 2: Convert to fraction form
    201,879.51/303,099.48 = 102,109.92/x
  3. Step 3: Cross multiply
    201,879.51x = 303,099.48 × 102,109.92
  4. Step 4: Simplify right side
    201,879.51x = 30,949,463,654.84
  5. Step 5: Solve for x
    x = 30,949,463,654.84/201,879.51
  6. Step 6: Final answer
    x = 153,306.61

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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.