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Finding the Fourth Proportional to 347,493, 479,537.10 and 196,590

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Solution

The fourth proportional to 347,493, 479,537.10 and 196,590 is: 271,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,493 : 479,537.10 = 196,590 : x
  2. Step 2: Convert to fraction form
    347,493/479,537.10 = 196,590/x
  3. Step 3: Cross multiply
    347,493x = 479,537.10 × 196,590
  4. Step 4: Simplify right side
    347,493x = 94,272,198,489
  5. Step 5: Solve for x
    x = 94,272,198,489/347,493
  6. Step 6: Final answer
    x = 271,292.37

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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.