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Finding the Fourth Proportional to 323,172.72, 445,981.43 and 179,935.84

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Solution

The fourth proportional to 323,172.72, 445,981.43 and 179,935.84 is: 248,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,172.72 : 445,981.43 = 179,935.84 : x
  2. Step 2: Convert to fraction form
    323,172.72/445,981.43 = 179,935.84/x
  3. Step 3: Cross multiply
    323,172.72x = 445,981.43 × 179,935.84
  4. Step 4: Simplify right side
    323,172.72x = 80,248,043,231.45
  5. Step 5: Solve for x
    x = 80,248,043,231.45/323,172.72
  6. Step 6: Final answer
    x = 248,313.17

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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.