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Finding the Fourth Proportional to 495.20, 683.69 and 363.98

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Solution

The fourth proportional to 495.20, 683.69 and 363.98 is: 502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.20 : 683.69 = 363.98 : x
  2. Step 2: Convert to fraction form
    495.20/683.69 = 363.98/x
  3. Step 3: Cross multiply
    495.20x = 683.69 × 363.98
  4. Step 4: Simplify right side
    495.20x = 248,844.25
  5. Step 5: Solve for x
    x = 248,844.25/495.20
  6. Step 6: Final answer
    x = 502.52

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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.