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Finding the Fourth Proportional to 329,342.07, 454,491.90 and 178,439.07

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Solution

The fourth proportional to 329,342.07, 454,491.90 and 178,439.07 is: 246,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,342.07 : 454,491.90 = 178,439.07 : x
  2. Step 2: Convert to fraction form
    329,342.07/454,491.90 = 178,439.07/x
  3. Step 3: Cross multiply
    329,342.07x = 454,491.90 × 178,439.07
  4. Step 4: Simplify right side
    329,342.07x = 81,099,111,958.53
  5. Step 5: Solve for x
    x = 81,099,111,958.53/329,342.07
  6. Step 6: Final answer
    x = 246,245.83

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1.5x scale

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.