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Finding the Fourth Proportional to 206,371.43, 309,557.54 and 56,613.77

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Solution

The fourth proportional to 206,371.43, 309,557.54 and 56,613.77 is: 84,920.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,371.43 : 309,557.54 = 56,613.77 : x
  2. Step 2: Convert to fraction form
    206,371.43/309,557.54 = 56,613.77/x
  3. Step 3: Cross multiply
    206,371.43x = 309,557.54 × 56,613.77
  4. Step 4: Simplify right side
    206,371.43x = 17,525,217,540.47
  5. Step 5: Solve for x
    x = 17,525,217,540.47/206,371.43
  6. Step 6: Final answer
    x = 84,920.76

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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.