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Finding the Fourth Proportional to 445,165.07, 667,829.61 and 145,662.44

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Solution

The fourth proportional to 445,165.07, 667,829.61 and 145,662.44 is: 218,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,165.07 : 667,829.61 = 145,662.44 : x
  2. Step 2: Convert to fraction form
    445,165.07/667,829.61 = 145,662.44/x
  3. Step 3: Cross multiply
    445,165.07x = 667,829.61 × 145,662.44
  4. Step 4: Simplify right side
    445,165.07x = 97,277,687,157.70
  5. Step 5: Solve for x
    x = 97,277,687,157.70/445,165.07
  6. Step 6: Final answer
    x = 218,520.49

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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.