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Finding the Fourth Proportional to 547,992.39, 821,910.22 and 188,156.51

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Solution

The fourth proportional to 547,992.39, 821,910.22 and 188,156.51 is: 282,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,992.39 : 821,910.22 = 188,156.51 : x
  2. Step 2: Convert to fraction form
    547,992.39/821,910.22 = 188,156.51/x
  3. Step 3: Cross multiply
    547,992.39x = 821,910.22 × 188,156.51
  4. Step 4: Simplify right side
    547,992.39x = 154,647,758,528.53
  5. Step 5: Solve for x
    x = 154,647,758,528.53/547,992.39
  6. Step 6: Final answer
    x = 282,207.86

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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.