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Finding the Fourth Proportional to 215,788, 323,682 and 68,044

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Solution

The fourth proportional to 215,788, 323,682 and 68,044 is: 102,066

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,788 : 323,682 = 68,044 : x
  2. Step 2: Convert to fraction form
    215,788/323,682 = 68,044/x
  3. Step 3: Cross multiply
    215,788x = 323,682 × 68,044
  4. Step 4: Simplify right side
    215,788x = 22,024,618,008
  5. Step 5: Solve for x
    x = 22,024,618,008/215,788
  6. Step 6: Final answer
    x = 102,066

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.