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Finding the Fourth Proportional to 333.54, 460.02 and 221.40

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Solution

The fourth proportional to 333.54, 460.02 and 221.40 is: 305.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.54 : 460.02 = 221.40 : x
  2. Step 2: Convert to fraction form
    333.54/460.02 = 221.40/x
  3. Step 3: Cross multiply
    333.54x = 460.02 × 221.40
  4. Step 4: Simplify right side
    333.54x = 101,848.43
  5. Step 5: Solve for x
    x = 101,848.43/333.54
  6. Step 6: Final answer
    x = 305.36

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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.