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Finding the Fourth Proportional to 443.96, 664.50 and 395.96

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Solution

The fourth proportional to 443.96, 664.50 and 395.96 is: 592.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.96 : 664.50 = 395.96 : x
  2. Step 2: Convert to fraction form
    443.96/664.50 = 395.96/x
  3. Step 3: Cross multiply
    443.96x = 664.50 × 395.96
  4. Step 4: Simplify right side
    443.96x = 263,115.42
  5. Step 5: Solve for x
    x = 263,115.42/443.96
  6. Step 6: Final answer
    x = 592.66

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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.