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Finding the Fourth Proportional to 447,696.89, 671,668.05 and 132,153.71

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Solution

The fourth proportional to 447,696.89, 671,668.05 and 132,153.71 is: 198,266.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,696.89 : 671,668.05 = 132,153.71 : x
  2. Step 2: Convert to fraction form
    447,696.89/671,668.05 = 132,153.71/x
  3. Step 3: Cross multiply
    447,696.89x = 671,668.05 × 132,153.71
  4. Step 4: Simplify right side
    447,696.89x = 88,763,424,695.97
  5. Step 5: Solve for x
    x = 88,763,424,695.97/447,696.89
  6. Step 6: Final answer
    x = 198,266.79

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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.