Home / 205,654.20-308,942.10-197,257.40

Finding the Fourth Proportional to 205,654.20, 308,942.10 and 197,257.40

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Solution

The fourth proportional to 205,654.20, 308,942.10 and 197,257.40 is: 296,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,654.20 : 308,942.10 = 197,257.40 : x
  2. Step 2: Convert to fraction form
    205,654.20/308,942.10 = 197,257.40/x
  3. Step 3: Cross multiply
    205,654.20x = 308,942.10 × 197,257.40
  4. Step 4: Simplify right side
    205,654.20x = 60,941,115,396.54
  5. Step 5: Solve for x
    x = 60,941,115,396.54/205,654.20
  6. Step 6: Final answer
    x = 296,328.09

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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.