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Finding the Fourth Proportional to 396,634.86, 595,188.68 and 143,935.07

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Solution

The fourth proportional to 396,634.86, 595,188.68 and 143,935.07 is: 215,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,634.86 : 595,188.68 = 143,935.07 : x
  2. Step 2: Convert to fraction form
    396,634.86/595,188.68 = 143,935.07/x
  3. Step 3: Cross multiply
    396,634.86x = 595,188.68 × 143,935.07
  4. Step 4: Simplify right side
    396,634.86x = 85,668,520,623.39
  5. Step 5: Solve for x
    x = 85,668,520,623.39/396,634.86
  6. Step 6: Final answer
    x = 215,988.38

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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.