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Finding the Fourth Proportional to 333.17, 459.91 and 239.95

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Solution

The fourth proportional to 333.17, 459.91 and 239.95 is: 331.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.17 : 459.91 = 239.95 : x
  2. Step 2: Convert to fraction form
    333.17/459.91 = 239.95/x
  3. Step 3: Cross multiply
    333.17x = 459.91 × 239.95
  4. Step 4: Simplify right side
    333.17x = 110,355.40
  5. Step 5: Solve for x
    x = 110,355.40/333.17
  6. Step 6: Final answer
    x = 331.23

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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.