Home / 258,827.45-388,279.42-132,539.09

Finding the Fourth Proportional to 258,827.45, 388,279.42 and 132,539.09

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Solution

The fourth proportional to 258,827.45, 388,279.42 and 132,539.09 is: 198,828.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,827.45 : 388,279.42 = 132,539.09 : x
  2. Step 2: Convert to fraction form
    258,827.45/388,279.42 = 132,539.09/x
  3. Step 3: Cross multiply
    258,827.45x = 388,279.42 × 132,539.09
  4. Step 4: Simplify right side
    258,827.45x = 51,462,198,719.78
  5. Step 5: Solve for x
    x = 51,462,198,719.78/258,827.45
  6. Step 6: Final answer
    x = 198,828.21

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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.