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Finding the Fourth Proportional to 484.05, 666.53 and 326.62

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Solution

The fourth proportional to 484.05, 666.53 and 326.62 is: 449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.05 : 666.53 = 326.62 : x
  2. Step 2: Convert to fraction form
    484.05/666.53 = 326.62/x
  3. Step 3: Cross multiply
    484.05x = 666.53 × 326.62
  4. Step 4: Simplify right side
    484.05x = 217,702.45
  5. Step 5: Solve for x
    x = 217,702.45/484.05
  6. Step 6: Final answer
    x = 449.75

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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.