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Finding the Fourth Proportional to 395,046.66, 545,160.45 and 213,754.62

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Solution

The fourth proportional to 395,046.66, 545,160.45 and 213,754.62 is: 294,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,046.66 : 545,160.45 = 213,754.62 : x
  2. Step 2: Convert to fraction form
    395,046.66/545,160.45 = 213,754.62/x
  3. Step 3: Cross multiply
    395,046.66x = 545,160.45 × 213,754.62
  4. Step 4: Simplify right side
    395,046.66x = 116,530,564,828.78
  5. Step 5: Solve for x
    x = 116,530,564,828.78/395,046.66
  6. Step 6: Final answer
    x = 294,979.24

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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.