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Finding the Fourth Proportional to 329,137.20, 454,211 and 178,234.80

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Solution

The fourth proportional to 329,137.20, 454,211 and 178,234.80 is: 245,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,137.20 : 454,211 = 178,234.80 : x
  2. Step 2: Convert to fraction form
    329,137.20/454,211 = 178,234.80/x
  3. Step 3: Cross multiply
    329,137.20x = 454,211 × 178,234.80
  4. Step 4: Simplify right side
    329,137.20x = 80,956,206,742.80
  5. Step 5: Solve for x
    x = 80,956,206,742.80/329,137.20
  6. Step 6: Final answer
    x = 245,964.93

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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.