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Finding the Fourth Proportional to 668,739, 1,003,166.82 and 170,103

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Solution

The fourth proportional to 668,739, 1,003,166.82 and 170,103 is: 255,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,739 : 1,003,166.82 = 170,103 : x
  2. Step 2: Convert to fraction form
    668,739/1,003,166.82 = 170,103/x
  3. Step 3: Cross multiply
    668,739x = 1,003,166.82 × 170,103
  4. Step 4: Simplify right side
    668,739x = 170,641,685,582.46
  5. Step 5: Solve for x
    x = 170,641,685,582.46/668,739
  6. Step 6: Final answer
    x = 255,169.33

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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.