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Finding the Fourth Proportional to 378,671.09, 568,002.07 and 108,805.88

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Solution

The fourth proportional to 378,671.09, 568,002.07 and 108,805.88 is: 163,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,671.09 : 568,002.07 = 108,805.88 : x
  2. Step 2: Convert to fraction form
    378,671.09/568,002.07 = 108,805.88/x
  3. Step 3: Cross multiply
    378,671.09x = 568,002.07 × 108,805.88
  4. Step 4: Simplify right side
    378,671.09x = 61,801,966,624.18
  5. Step 5: Solve for x
    x = 61,801,966,624.18/378,671.09
  6. Step 6: Final answer
    x = 163,207.51

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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.