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Finding the Fourth Proportional to 271,141.60, 406,942.80 and 218,610.40

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Solution

The fourth proportional to 271,141.60, 406,942.80 and 218,610.40 is: 328,101.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,141.60 : 406,942.80 = 218,610.40 : x
  2. Step 2: Convert to fraction form
    271,141.60/406,942.80 = 218,610.40/x
  3. Step 3: Cross multiply
    271,141.60x = 406,942.80 × 218,610.40
  4. Step 4: Simplify right side
    271,141.60x = 88,961,928,285.12
  5. Step 5: Solve for x
    x = 88,961,928,285.12/271,141.60
  6. Step 6: Final answer
    x = 328,101.36

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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.