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Finding the Fourth Proportional to 333.97, 500.90 and 171.65

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Solution

The fourth proportional to 333.97, 500.90 and 171.65 is: 257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.97 : 500.90 = 171.65 : x
  2. Step 2: Convert to fraction form
    333.97/500.90 = 171.65/x
  3. Step 3: Cross multiply
    333.97x = 500.90 × 171.65
  4. Step 4: Simplify right side
    333.97x = 85,979.49
  5. Step 5: Solve for x
    x = 85,979.49/333.97
  6. Step 6: Final answer
    x = 257.45

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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.