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Finding the Fourth Proportional to 337.89, 506.60 and 172.95

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Solution

The fourth proportional to 337.89, 506.60 and 172.95 is: 259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.89 : 506.60 = 172.95 : x
  2. Step 2: Convert to fraction form
    337.89/506.60 = 172.95/x
  3. Step 3: Cross multiply
    337.89x = 506.60 × 172.95
  4. Step 4: Simplify right side
    337.89x = 87,615.61
  5. Step 5: Solve for x
    x = 87,615.61/337.89
  6. Step 6: Final answer
    x = 259.31

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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.