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Finding the Fourth Proportional to 668,741, 1,003,169.82 and 170,105

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Solution

The fourth proportional to 668,741, 1,003,169.82 and 170,105 is: 255,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,741 : 1,003,169.82 = 170,105 : x
  2. Step 2: Convert to fraction form
    668,741/1,003,169.82 = 170,105/x
  3. Step 3: Cross multiply
    668,741x = 1,003,169.82 × 170,105
  4. Step 4: Simplify right side
    668,741x = 170,644,202,231.10
  5. Step 5: Solve for x
    x = 170,644,202,231.10/668,741
  6. Step 6: Final answer
    x = 255,172.33

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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.