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Finding the Fourth Proportional to 381,257.60, 571,497.60 and 223,404.80

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Solution

The fourth proportional to 381,257.60, 571,497.60 and 223,404.80 is: 334,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,257.60 : 571,497.60 = 223,404.80 : x
  2. Step 2: Convert to fraction form
    381,257.60/571,497.60 = 223,404.80/x
  3. Step 3: Cross multiply
    381,257.60x = 571,497.60 × 223,404.80
  4. Step 4: Simplify right side
    381,257.60x = 127,675,307,028.48
  5. Step 5: Solve for x
    x = 127,675,307,028.48/381,257.60
  6. Step 6: Final answer
    x = 334,879.38

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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.