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Finding the Fourth Proportional to 404,155.81, 557,748.49 and 220,404.44

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Solution

The fourth proportional to 404,155.81, 557,748.49 and 220,404.44 is: 304,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,155.81 : 557,748.49 = 220,404.44 : x
  2. Step 2: Convert to fraction form
    404,155.81/557,748.49 = 220,404.44/x
  3. Step 3: Cross multiply
    404,155.81x = 557,748.49 × 220,404.44
  4. Step 4: Simplify right side
    404,155.81x = 122,930,243,599.30
  5. Step 5: Solve for x
    x = 122,930,243,599.30/404,155.81
  6. Step 6: Final answer
    x = 304,165.47

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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.