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Finding the Fourth Proportional to 344.99, 517.66 and 159.89

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Solution

The fourth proportional to 344.99, 517.66 and 159.89 is: 239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.99 : 517.66 = 159.89 : x
  2. Step 2: Convert to fraction form
    344.99/517.66 = 159.89/x
  3. Step 3: Cross multiply
    344.99x = 517.66 × 159.89
  4. Step 4: Simplify right side
    344.99x = 82,768.66
  5. Step 5: Solve for x
    x = 82,768.66/344.99
  6. Step 6: Final answer
    x = 239.92

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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.