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Finding the Fourth Proportional to 395,102.49, 545,241.41 and 213,814.40

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Solution

The fourth proportional to 395,102.49, 545,241.41 and 213,814.40 is: 295,063.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,102.49 : 545,241.41 = 213,814.40 : x
  2. Step 2: Convert to fraction form
    395,102.49/545,241.41 = 213,814.40/x
  3. Step 3: Cross multiply
    395,102.49x = 545,241.41 × 213,814.40
  4. Step 4: Simplify right side
    395,102.49x = 116,580,464,934.30
  5. Step 5: Solve for x
    x = 116,580,464,934.30/395,102.49
  6. Step 6: Final answer
    x = 295,063.86

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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.