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Finding the Fourth Proportional to 360.09, 496.62 and 220.05

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Solution

The fourth proportional to 360.09, 496.62 and 220.05 is: 303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.09 : 496.62 = 220.05 : x
  2. Step 2: Convert to fraction form
    360.09/496.62 = 220.05/x
  3. Step 3: Cross multiply
    360.09x = 496.62 × 220.05
  4. Step 4: Simplify right side
    360.09x = 109,281.23
  5. Step 5: Solve for x
    x = 109,281.23/360.09
  6. Step 6: Final answer
    x = 303.48

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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.