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Finding the Fourth Proportional to 258,838.88, 388,296.48 and 132,550.48

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Solution

The fourth proportional to 258,838.88, 388,296.48 and 132,550.48 is: 198,845.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,838.88 : 388,296.48 = 132,550.48 : x
  2. Step 2: Convert to fraction form
    258,838.88/388,296.48 = 132,550.48/x
  3. Step 3: Cross multiply
    258,838.88x = 388,296.48 × 132,550.48
  4. Step 4: Simplify right side
    258,838.88x = 51,468,884,806.31
  5. Step 5: Solve for x
    x = 51,468,884,806.31/258,838.88
  6. Step 6: Final answer
    x = 198,845.26

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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.