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Finding the Fourth Proportional to 445,425.01, 667,996.84 and 145,836.73

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Solution

The fourth proportional to 445,425.01, 667,996.84 and 145,836.73 is: 218,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,425.01 : 667,996.84 = 145,836.73 : x
  2. Step 2: Convert to fraction form
    445,425.01/667,996.84 = 145,836.73/x
  3. Step 3: Cross multiply
    445,425.01x = 667,996.84 × 145,836.73
  4. Step 4: Simplify right side
    445,425.01x = 97,418,474,795.93
  5. Step 5: Solve for x
    x = 97,418,474,795.93/445,425.01
  6. Step 6: Final answer
    x = 218,709.04

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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.