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Finding the Fourth Proportional to 360.60, 497.39 and 220.62

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Solution

The fourth proportional to 360.60, 497.39 and 220.62 is: 304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.60 : 497.39 = 220.62 : x
  2. Step 2: Convert to fraction form
    360.60/497.39 = 220.62/x
  3. Step 3: Cross multiply
    360.60x = 497.39 × 220.62
  4. Step 4: Simplify right side
    360.60x = 109,736.18
  5. Step 5: Solve for x
    x = 109,736.18/360.60
  6. Step 6: Final answer
    x = 304.31

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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.