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Finding the Fourth Proportional to 131,488, 197,232 and 43,936

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Solution

The fourth proportional to 131,488, 197,232 and 43,936 is: 65,904

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,488 : 197,232 = 43,936 : x
  2. Step 2: Convert to fraction form
    131,488/197,232 = 43,936/x
  3. Step 3: Cross multiply
    131,488x = 197,232 × 43,936
  4. Step 4: Simplify right side
    131,488x = 8,665,585,152
  5. Step 5: Solve for x
    x = 8,665,585,152/131,488
  6. Step 6: Final answer
    x = 65,904

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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.