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Finding the Fourth Proportional to 329,972.52, 455,361.84 and 186,729.96

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Solution

The fourth proportional to 329,972.52, 455,361.84 and 186,729.96 is: 257,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,972.52 : 455,361.84 = 186,729.96 : x
  2. Step 2: Convert to fraction form
    329,972.52/455,361.84 = 186,729.96/x
  3. Step 3: Cross multiply
    329,972.52x = 455,361.84 × 186,729.96
  4. Step 4: Simplify right side
    329,972.52x = 85,029,698,168.73
  5. Step 5: Solve for x
    x = 85,029,698,168.73/329,972.52
  6. Step 6: Final answer
    x = 257,687.21

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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.