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Finding the Fourth Proportional to 547,898.52, 756,100.98 and 306,181.09

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Solution

The fourth proportional to 547,898.52, 756,100.98 and 306,181.09 is: 422,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,898.52 : 756,100.98 = 306,181.09 : x
  2. Step 2: Convert to fraction form
    547,898.52/756,100.98 = 306,181.09/x
  3. Step 3: Cross multiply
    547,898.52x = 756,100.98 × 306,181.09
  4. Step 4: Simplify right side
    547,898.52x = 231,503,823,151.59
  5. Step 5: Solve for x
    x = 231,503,823,151.59/547,898.52
  6. Step 6: Final answer
    x = 422,530.48

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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.