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Finding the Fourth Proportional to 329,679.75, 454,958.07 and 178,776.87

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Solution

The fourth proportional to 329,679.75, 454,958.07 and 178,776.87 is: 246,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,679.75 : 454,958.07 = 178,776.87 : x
  2. Step 2: Convert to fraction form
    329,679.75/454,958.07 = 178,776.87/x
  3. Step 3: Cross multiply
    329,679.75x = 454,958.07 × 178,776.87
  4. Step 4: Simplify right side
    329,679.75x = 81,335,979,735.84
  5. Step 5: Solve for x
    x = 81,335,979,735.84/329,679.75
  6. Step 6: Final answer
    x = 246,712.09

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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.