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Finding the Fourth Proportional to 360.45, 497.61 and 272.97

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Solution

The fourth proportional to 360.45, 497.61 and 272.97 is: 376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.45 : 497.61 = 272.97 : x
  2. Step 2: Convert to fraction form
    360.45/497.61 = 272.97/x
  3. Step 3: Cross multiply
    360.45x = 497.61 × 272.97
  4. Step 4: Simplify right side
    360.45x = 135,832.60
  5. Step 5: Solve for x
    x = 135,832.60/360.45
  6. Step 6: Final answer
    x = 376.84

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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.