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Finding the Fourth Proportional to 617.15, 851.64 and 337.37

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Solution

The fourth proportional to 617.15, 851.64 and 337.37 is: 465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.15 : 851.64 = 337.37 : x
  2. Step 2: Convert to fraction form
    617.15/851.64 = 337.37/x
  3. Step 3: Cross multiply
    617.15x = 851.64 × 337.37
  4. Step 4: Simplify right side
    617.15x = 287,318.63
  5. Step 5: Solve for x
    x = 287,318.63/617.15
  6. Step 6: Final answer
    x = 465.56

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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.