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Finding the Fourth Proportional to 275,537.40, 413,306.10 and 205,553.40

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Solution

The fourth proportional to 275,537.40, 413,306.10 and 205,553.40 is: 308,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,537.40 : 413,306.10 = 205,553.40 : x
  2. Step 2: Convert to fraction form
    275,537.40/413,306.10 = 205,553.40/x
  3. Step 3: Cross multiply
    275,537.40x = 413,306.10 × 205,553.40
  4. Step 4: Simplify right side
    275,537.40x = 84,956,474,095.74
  5. Step 5: Solve for x
    x = 84,956,474,095.74/275,537.40
  6. Step 6: Final answer
    x = 308,330.10

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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.