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Finding the Fourth Proportional to 240.60, 330.45 and 222.60

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Solution

The fourth proportional to 240.60, 330.45 and 222.60 is: 305.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.60 : 330.45 = 222.60 : x
  2. Step 2: Convert to fraction form
    240.60/330.45 = 222.60/x
  3. Step 3: Cross multiply
    240.60x = 330.45 × 222.60
  4. Step 4: Simplify right side
    240.60x = 73,558.17
  5. Step 5: Solve for x
    x = 73,558.17/240.60
  6. Step 6: Final answer
    x = 305.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.