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Finding the Fourth Proportional to 271,748.98, 405,793.52 and 221,927.91

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Solution

The fourth proportional to 271,748.98, 405,793.52 and 221,927.91 is: 331,397.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,748.98 : 405,793.52 = 221,927.91 : x
  2. Step 2: Convert to fraction form
    271,748.98/405,793.52 = 221,927.91/x
  3. Step 3: Cross multiply
    271,748.98x = 405,793.52 × 221,927.91
  4. Step 4: Simplify right side
    271,748.98x = 90,056,907,785.14
  5. Step 5: Solve for x
    x = 90,056,907,785.14/271,748.98
  6. Step 6: Final answer
    x = 331,397.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.