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Finding the Fourth Proportional to 396,990, 595,485 and 101,502

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Solution

The fourth proportional to 396,990, 595,485 and 101,502 is: 152,253

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,990 : 595,485 = 101,502 : x
  2. Step 2: Convert to fraction form
    396,990/595,485 = 101,502/x
  3. Step 3: Cross multiply
    396,990x = 595,485 × 101,502
  4. Step 4: Simplify right side
    396,990x = 60,442,918,470
  5. Step 5: Solve for x
    x = 60,442,918,470/396,990
  6. Step 6: Final answer
    x = 152,253

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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.