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Finding the Fourth Proportional to 322,978.40, 445,704.18 and 179,737.10

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Solution

The fourth proportional to 322,978.40, 445,704.18 and 179,737.10 is: 248,033.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,978.40 : 445,704.18 = 179,737.10 : x
  2. Step 2: Convert to fraction form
    322,978.40/445,704.18 = 179,737.10/x
  3. Step 3: Cross multiply
    322,978.40x = 445,704.18 × 179,737.10
  4. Step 4: Simplify right side
    322,978.40x = 80,109,576,771.08
  5. Step 5: Solve for x
    x = 80,109,576,771.08/322,978.40
  6. Step 6: Final answer
    x = 248,033.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.