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Finding the Fourth Proportional to 322,962.78, 445,685.42 and 179,720.34

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Solution

The fourth proportional to 322,962.78, 445,685.42 and 179,720.34 is: 248,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,962.78 : 445,685.42 = 179,720.34 : x
  2. Step 2: Convert to fraction form
    322,962.78/445,685.42 = 179,720.34/x
  3. Step 3: Cross multiply
    322,962.78x = 445,685.42 × 179,720.34
  4. Step 4: Simplify right side
    322,962.78x = 80,098,735,215.44
  5. Step 5: Solve for x
    x = 80,098,735,215.44/322,962.78
  6. Step 6: Final answer
    x = 248,012.28

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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.