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Finding the Fourth Proportional to 329,447.20, 454,636.92 and 178,544.20

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Solution

The fourth proportional to 329,447.20, 454,636.92 and 178,544.20 is: 246,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,447.20 : 454,636.92 = 178,544.20 : x
  2. Step 2: Convert to fraction form
    329,447.20/454,636.92 = 178,544.20/x
  3. Step 3: Cross multiply
    329,447.20x = 454,636.92 × 178,544.20
  4. Step 4: Simplify right side
    329,447.20x = 81,172,785,171.86
  5. Step 5: Solve for x
    x = 81,172,785,171.86/329,447.20
  6. Step 6: Final answer
    x = 246,390.88

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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.