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Finding the Fourth Proportional to 194,479, 268,374.30 and 109,591

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Solution

The fourth proportional to 194,479, 268,374.30 and 109,591 is: 151,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,479 : 268,374.30 = 109,591 : x
  2. Step 2: Convert to fraction form
    194,479/268,374.30 = 109,591/x
  3. Step 3: Cross multiply
    194,479x = 268,374.30 × 109,591
  4. Step 4: Simplify right side
    194,479x = 29,411,407,911.30
  5. Step 5: Solve for x
    x = 29,411,407,911.30/194,479
  6. Step 6: Final answer
    x = 151,231.79

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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.