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Finding the Fourth Proportional to 667.12, 999.06 and 337.62

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Solution

The fourth proportional to 667.12, 999.06 and 337.62 is: 505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.12 : 999.06 = 337.62 : x
  2. Step 2: Convert to fraction form
    667.12/999.06 = 337.62/x
  3. Step 3: Cross multiply
    667.12x = 999.06 × 337.62
  4. Step 4: Simplify right side
    667.12x = 337,302.64
  5. Step 5: Solve for x
    x = 337,302.64/667.12
  6. Step 6: Final answer
    x = 505.61

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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.