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Finding the Fourth Proportional to 333.76, 460.24 and 221.56

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Solution

The fourth proportional to 333.76, 460.24 and 221.56 is: 305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.76 : 460.24 = 221.56 : x
  2. Step 2: Convert to fraction form
    333.76/460.24 = 221.56/x
  3. Step 3: Cross multiply
    333.76x = 460.24 × 221.56
  4. Step 4: Simplify right side
    333.76x = 101,970.77
  5. Step 5: Solve for x
    x = 101,970.77/333.76
  6. Step 6: Final answer
    x = 305.52

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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.