Home / 258,175.30-387,414.51-108,404.07

Finding the Fourth Proportional to 258,175.30, 387,414.51 and 108,404.07

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Solution

The fourth proportional to 258,175.30, 387,414.51 and 108,404.07 is: 162,669.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,175.30 : 387,414.51 = 108,404.07 : x
  2. Step 2: Convert to fraction form
    258,175.30/387,414.51 = 108,404.07/x
  3. Step 3: Cross multiply
    258,175.30x = 387,414.51 × 108,404.07
  4. Step 4: Simplify right side
    258,175.30x = 41,997,307,723.98
  5. Step 5: Solve for x
    x = 41,997,307,723.98/258,175.30
  6. Step 6: Final answer
    x = 162,669.74

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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.