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Finding the Fourth Proportional to 395,092.93, 545,228.24 and 213,804.85

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Solution

The fourth proportional to 395,092.93, 545,228.24 and 213,804.85 is: 295,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,092.93 : 545,228.24 = 213,804.85 : x
  2. Step 2: Convert to fraction form
    395,092.93/545,228.24 = 213,804.85/x
  3. Step 3: Cross multiply
    395,092.93x = 545,228.24 × 213,804.85
  4. Step 4: Simplify right side
    395,092.93x = 116,572,443,560.68
  5. Step 5: Solve for x
    x = 116,572,443,560.68/395,092.93
  6. Step 6: Final answer
    x = 295,050.70

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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.