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Finding the Fourth Proportional to 361,961.64, 499,520.41 and 218,694.00

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Solution

The fourth proportional to 361,961.64, 499,520.41 and 218,694.00 is: 301,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,961.64 : 499,520.41 = 218,694.00 : x
  2. Step 2: Convert to fraction form
    361,961.64/499,520.41 = 218,694.00/x
  3. Step 3: Cross multiply
    361,961.64x = 499,520.41 × 218,694.00
  4. Step 4: Simplify right side
    361,961.64x = 109,242,116,158.57
  5. Step 5: Solve for x
    x = 109,242,116,158.57/361,961.64
  6. Step 6: Final answer
    x = 301,805.79

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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.