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Finding the Fourth Proportional to 258,551.52, 388,190.43 and 132,282.30

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Solution

The fourth proportional to 258,551.52, 388,190.43 and 132,282.30 is: 198,609.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,551.52 : 388,190.43 = 132,282.30 : x
  2. Step 2: Convert to fraction form
    258,551.52/388,190.43 = 132,282.30/x
  3. Step 3: Cross multiply
    258,551.52x = 388,190.43 × 132,282.30
  4. Step 4: Simplify right side
    258,551.52x = 51,350,722,918.39
  5. Step 5: Solve for x
    x = 51,350,722,918.39/258,551.52
  6. Step 6: Final answer
    x = 198,609.25

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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.