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Finding the Fourth Proportional to 463.73, 639.82 and 365.18

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Solution

The fourth proportional to 463.73, 639.82 and 365.18 is: 503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.73 : 639.82 = 365.18 : x
  2. Step 2: Convert to fraction form
    463.73/639.82 = 365.18/x
  3. Step 3: Cross multiply
    463.73x = 639.82 × 365.18
  4. Step 4: Simplify right side
    463.73x = 233,650.15
  5. Step 5: Solve for x
    x = 233,650.15/463.73
  6. Step 6: Final answer
    x = 503.85

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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.