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Finding the Fourth Proportional to 221.60, 333.92 and 183.94

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Solution

The fourth proportional to 221.60, 333.92 and 183.94 is: 277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.60 : 333.92 = 183.94 : x
  2. Step 2: Convert to fraction form
    221.60/333.92 = 183.94/x
  3. Step 3: Cross multiply
    221.60x = 333.92 × 183.94
  4. Step 4: Simplify right side
    221.60x = 61,421.24
  5. Step 5: Solve for x
    x = 61,421.24/221.60
  6. Step 6: Final answer
    x = 277.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.