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Finding the Fourth Proportional to 617.30, 851.87 and 337.54

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Solution

The fourth proportional to 617.30, 851.87 and 337.54 is: 465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.30 : 851.87 = 337.54 : x
  2. Step 2: Convert to fraction form
    617.30/851.87 = 337.54/x
  3. Step 3: Cross multiply
    617.30x = 851.87 × 337.54
  4. Step 4: Simplify right side
    617.30x = 287,540.51
  5. Step 5: Solve for x
    x = 287,540.51/617.30
  6. Step 6: Final answer
    x = 465.80

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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.