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Finding the Fourth Proportional to 329,641.38, 454,905.36 and 178,738.38

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Solution

The fourth proportional to 329,641.38, 454,905.36 and 178,738.38 is: 246,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,641.38 : 454,905.36 = 178,738.38 : x
  2. Step 2: Convert to fraction form
    329,641.38/454,905.36 = 178,738.38/x
  3. Step 3: Cross multiply
    329,641.38x = 454,905.36 × 178,738.38
  4. Step 4: Simplify right side
    329,641.38x = 81,309,047,099.72
  5. Step 5: Solve for x
    x = 81,309,047,099.72/329,641.38
  6. Step 6: Final answer
    x = 246,659.10

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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.