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Finding the Fourth Proportional to 395,553.22, 545,866.07 and 214,265.15

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Solution

The fourth proportional to 395,553.22, 545,866.07 and 214,265.15 is: 295,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,553.22 : 545,866.07 = 214,265.15 : x
  2. Step 2: Convert to fraction form
    395,553.22/545,866.07 = 214,265.15/x
  3. Step 3: Cross multiply
    395,553.22x = 545,866.07 × 214,265.15
  4. Step 4: Simplify right side
    395,553.22x = 116,960,077,890.54
  5. Step 5: Solve for x
    x = 116,960,077,890.54/395,553.22
  6. Step 6: Final answer
    x = 295,687.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.