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Finding the Fourth Proportional to 396,179.63, 594,315.66 and 143,579.10

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Solution

The fourth proportional to 396,179.63, 594,315.66 and 143,579.10 is: 215,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,179.63 : 594,315.66 = 143,579.10 : x
  2. Step 2: Convert to fraction form
    396,179.63/594,315.66 = 143,579.10/x
  3. Step 3: Cross multiply
    396,179.63x = 594,315.66 × 143,579.10
  4. Step 4: Simplify right side
    396,179.63x = 85,331,307,578.71
  5. Step 5: Solve for x
    x = 85,331,307,578.71/396,179.63
  6. Step 6: Final answer
    x = 215,385.40

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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.