Home / 258,163.73-387,397.29-108,392.50

Finding the Fourth Proportional to 258,163.73, 387,397.29 and 108,392.50

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Solution

The fourth proportional to 258,163.73, 387,397.29 and 108,392.50 is: 162,652.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,163.73 : 387,397.29 = 108,392.50 : x
  2. Step 2: Convert to fraction form
    258,163.73/387,397.29 = 108,392.50/x
  3. Step 3: Cross multiply
    258,163.73x = 387,397.29 × 108,392.50
  4. Step 4: Simplify right side
    258,163.73x = 41,990,961,240.57
  5. Step 5: Solve for x
    x = 41,990,961,240.57/258,163.73
  6. Step 6: Final answer
    x = 162,652.44

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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.