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Finding the Fourth Proportional to 274,089.35, 411,178.32 and 84,505.34

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Solution

The fourth proportional to 274,089.35, 411,178.32 and 84,505.34 is: 126,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,089.35 : 411,178.32 = 84,505.34 : x
  2. Step 2: Convert to fraction form
    274,089.35/411,178.32 = 84,505.34/x
  3. Step 3: Cross multiply
    274,089.35x = 411,178.32 × 84,505.34
  4. Step 4: Simplify right side
    274,089.35x = 34,746,761,676.34
  5. Step 5: Solve for x
    x = 34,746,761,676.34/274,089.35
  6. Step 6: Final answer
    x = 126,771.66

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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.