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Finding the Fourth Proportional to 442,863.76, 664,401.09 and 143,344.39

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Solution

The fourth proportional to 442,863.76, 664,401.09 and 143,344.39 is: 215,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,863.76 : 664,401.09 = 143,344.39 : x
  2. Step 2: Convert to fraction form
    442,863.76/664,401.09 = 143,344.39/x
  3. Step 3: Cross multiply
    442,863.76x = 664,401.09 × 143,344.39
  4. Step 4: Simplify right side
    442,863.76x = 95,238,168,961.39
  5. Step 5: Solve for x
    x = 95,238,168,961.39/442,863.76
  6. Step 6: Final answer
    x = 215,050.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.