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Finding the Fourth Proportional to 222.20, 333.60 and 176.60

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Solution

The fourth proportional to 222.20, 333.60 and 176.60 is: 265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.20 : 333.60 = 176.60 : x
  2. Step 2: Convert to fraction form
    222.20/333.60 = 176.60/x
  3. Step 3: Cross multiply
    222.20x = 333.60 × 176.60
  4. Step 4: Simplify right side
    222.20x = 58,913.76
  5. Step 5: Solve for x
    x = 58,913.76/222.20
  6. Step 6: Final answer
    x = 265.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.