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Finding the Fourth Proportional to 329,449.20, 454,639.68 and 178,546.20

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Solution

The fourth proportional to 329,449.20, 454,639.68 and 178,546.20 is: 246,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,449.20 : 454,639.68 = 178,546.20 : x
  2. Step 2: Convert to fraction form
    329,449.20/454,639.68 = 178,546.20/x
  3. Step 3: Cross multiply
    329,449.20x = 454,639.68 × 178,546.20
  4. Step 4: Simplify right side
    329,449.20x = 81,174,187,233.22
  5. Step 5: Solve for x
    x = 81,174,187,233.22/329,449.20
  6. Step 6: Final answer
    x = 246,393.64

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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.