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Finding the Fourth Proportional to 204,612, 306,918 and 56,868

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Solution

The fourth proportional to 204,612, 306,918 and 56,868 is: 85,302

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,612 : 306,918 = 56,868 : x
  2. Step 2: Convert to fraction form
    204,612/306,918 = 56,868/x
  3. Step 3: Cross multiply
    204,612x = 306,918 × 56,868
  4. Step 4: Simplify right side
    204,612x = 17,453,812,824
  5. Step 5: Solve for x
    x = 17,453,812,824/204,612
  6. Step 6: Final answer
    x = 85,302

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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.