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Finding the Fourth Proportional to 333.14, 498.93 and 321.60

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Solution

The fourth proportional to 333.14, 498.93 and 321.60 is: 481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.14 : 498.93 = 321.60 : x
  2. Step 2: Convert to fraction form
    333.14/498.93 = 321.60/x
  3. Step 3: Cross multiply
    333.14x = 498.93 × 321.60
  4. Step 4: Simplify right side
    333.14x = 160,455.89
  5. Step 5: Solve for x
    x = 160,455.89/333.14
  6. Step 6: Final answer
    x = 481.65

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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.