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Finding the Fourth Proportional to 171.77, 237.06 and 109.62

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Solution

The fourth proportional to 171.77, 237.06 and 109.62 is: 151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.77 : 237.06 = 109.62 : x
  2. Step 2: Convert to fraction form
    171.77/237.06 = 109.62/x
  3. Step 3: Cross multiply
    171.77x = 237.06 × 109.62
  4. Step 4: Simplify right side
    171.77x = 25,986.52
  5. Step 5: Solve for x
    x = 25,986.52/171.77
  6. Step 6: Final answer
    x = 151.29

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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.