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Finding the Fourth Proportional to 131,482, 197,223 and 43,930

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Solution

The fourth proportional to 131,482, 197,223 and 43,930 is: 65,895

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,482 : 197,223 = 43,930 : x
  2. Step 2: Convert to fraction form
    131,482/197,223 = 43,930/x
  3. Step 3: Cross multiply
    131,482x = 197,223 × 43,930
  4. Step 4: Simplify right side
    131,482x = 8,664,006,390
  5. Step 5: Solve for x
    x = 8,664,006,390/131,482
  6. Step 6: Final answer
    x = 65,895

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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.