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Finding the Fourth Proportional to 668,736, 1,003,162.32 and 170,100

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Solution

The fourth proportional to 668,736, 1,003,162.32 and 170,100 is: 255,164.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,736 : 1,003,162.32 = 170,100 : x
  2. Step 2: Convert to fraction form
    668,736/1,003,162.32 = 170,100/x
  3. Step 3: Cross multiply
    668,736x = 1,003,162.32 × 170,100
  4. Step 4: Simplify right side
    668,736x = 170,637,910,632
  5. Step 5: Solve for x
    x = 170,637,910,632/668,736
  6. Step 6: Final answer
    x = 255,164.83

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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.