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Finding the Fourth Proportional to 283,866.12, 425,790 and 115,336.68

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Solution

The fourth proportional to 283,866.12, 425,790 and 115,336.68 is: 173,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,866.12 : 425,790 = 115,336.68 : x
  2. Step 2: Convert to fraction form
    283,866.12/425,790 = 115,336.68/x
  3. Step 3: Cross multiply
    283,866.12x = 425,790 × 115,336.68
  4. Step 4: Simplify right side
    283,866.12x = 49,109,204,977.20
  5. Step 5: Solve for x
    x = 49,109,204,977.20/283,866.12
  6. Step 6: Final answer
    x = 173,001.29

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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.