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Finding the Fourth Proportional to 445,065, 667,681.20 and 178,846.62

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Solution

The fourth proportional to 445,065, 667,681.20 and 178,846.62 is: 268,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,065 : 667,681.20 = 178,846.62 : x
  2. Step 2: Convert to fraction form
    445,065/667,681.20 = 178,846.62/x
  3. Step 3: Cross multiply
    445,065x = 667,681.20 × 178,846.62
  4. Step 4: Simplify right side
    445,065x = 119,412,525,857.54
  5. Step 5: Solve for x
    x = 119,412,525,857.54/445,065
  6. Step 6: Final answer
    x = 268,303.56

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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.