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Finding the Fourth Proportional to 396,717.55, 595,076.42 and 143,997.55

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Solution

The fourth proportional to 396,717.55, 595,076.42 and 143,997.55 is: 215,996.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,717.55 : 595,076.42 = 143,997.55 : x
  2. Step 2: Convert to fraction form
    396,717.55/595,076.42 = 143,997.55/x
  3. Step 3: Cross multiply
    396,717.55x = 595,076.42 × 143,997.55
  4. Step 4: Simplify right side
    396,717.55x = 85,689,545,415.07
  5. Step 5: Solve for x
    x = 85,689,545,415.07/396,717.55
  6. Step 6: Final answer
    x = 215,996.36

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1.5x scale

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.