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Finding the Fourth Proportional to 329,015.91, 454,042.11 and 178,112.91

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Solution

The fourth proportional to 329,015.91, 454,042.11 and 178,112.91 is: 245,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,015.91 : 454,042.11 = 178,112.91 : x
  2. Step 2: Convert to fraction form
    329,015.91/454,042.11 = 178,112.91/x
  3. Step 3: Cross multiply
    329,015.91x = 454,042.11 × 178,112.91
  4. Step 4: Simplify right side
    329,015.91x = 80,870,761,474.64
  5. Step 5: Solve for x
    x = 80,870,761,474.64/329,015.91
  6. Step 6: Final answer
    x = 245,795.90

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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.