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Finding the Fourth Proportional to 363.46, 501.55 and 206.09

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Solution

The fourth proportional to 363.46, 501.55 and 206.09 is: 284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.46 : 501.55 = 206.09 : x
  2. Step 2: Convert to fraction form
    363.46/501.55 = 206.09/x
  3. Step 3: Cross multiply
    363.46x = 501.55 × 206.09
  4. Step 4: Simplify right side
    363.46x = 103,364.44
  5. Step 5: Solve for x
    x = 103,364.44/363.46
  6. Step 6: Final answer
    x = 284.39

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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.