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Finding the Fourth Proportional to 339,717.20, 468,855.22 and 219,208.84

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Solution

The fourth proportional to 339,717.20, 468,855.22 and 219,208.84 is: 302,537.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,717.20 : 468,855.22 = 219,208.84 : x
  2. Step 2: Convert to fraction form
    339,717.20/468,855.22 = 219,208.84/x
  3. Step 3: Cross multiply
    339,717.20x = 468,855.22 × 219,208.84
  4. Step 4: Simplify right side
    339,717.20x = 102,777,208,904.15
  5. Step 5: Solve for x
    x = 102,777,208,904.15/339,717.20
  6. Step 6: Final answer
    x = 302,537.55

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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.