Home / 258,829.29-388,185.61-100,976.49

Finding the Fourth Proportional to 258,829.29, 388,185.61 and 100,976.49

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Solution

The fourth proportional to 258,829.29, 388,185.61 and 100,976.49 is: 151,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,829.29 : 388,185.61 = 100,976.49 : x
  2. Step 2: Convert to fraction form
    258,829.29/388,185.61 = 100,976.49/x
  3. Step 3: Cross multiply
    258,829.29x = 388,185.61 × 100,976.49
  4. Step 4: Simplify right side
    258,829.29x = 39,197,620,366.31
  5. Step 5: Solve for x
    x = 39,197,620,366.31/258,829.29
  6. Step 6: Final answer
    x = 151,441.98

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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.