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Finding the Fourth Proportional to 330,531.77, 495,797.82 and 218,185.73

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Solution

The fourth proportional to 330,531.77, 495,797.82 and 218,185.73 is: 327,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,531.77 : 495,797.82 = 218,185.73 : x
  2. Step 2: Convert to fraction form
    330,531.77/495,797.82 = 218,185.73/x
  3. Step 3: Cross multiply
    330,531.77x = 495,797.82 × 218,185.73
  4. Step 4: Simplify right side
    330,531.77x = 108,176,009,289.11
  5. Step 5: Solve for x
    x = 108,176,009,289.11/330,531.77
  6. Step 6: Final answer
    x = 327,278.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.