Home / 258,729.27-388,035.59-71,755.35

Finding the Fourth Proportional to 258,729.27, 388,035.59 and 71,755.35

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Solution

The fourth proportional to 258,729.27, 388,035.59 and 71,755.35 is: 107,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,729.27 : 388,035.59 = 71,755.35 : x
  2. Step 2: Convert to fraction form
    258,729.27/388,035.59 = 71,755.35/x
  3. Step 3: Cross multiply
    258,729.27x = 388,035.59 × 71,755.35
  4. Step 4: Simplify right side
    258,729.27x = 27,843,629,214.13
  5. Step 5: Solve for x
    x = 27,843,629,214.13/258,729.27
  6. Step 6: Final answer
    x = 107,616.85

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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.