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Finding the Fourth Proportional to 376.69, 564.75 and 171.09

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Solution

The fourth proportional to 376.69, 564.75 and 171.09 is: 256.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.69 : 564.75 = 171.09 : x
  2. Step 2: Convert to fraction form
    376.69/564.75 = 171.09/x
  3. Step 3: Cross multiply
    376.69x = 564.75 × 171.09
  4. Step 4: Simplify right side
    376.69x = 96,621.01
  5. Step 5: Solve for x
    x = 96,621.01/376.69
  6. Step 6: Final answer
    x = 256.50

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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.