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Finding the Fourth Proportional to 556.06, 834.11 and 171.31

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Solution

The fourth proportional to 556.06, 834.11 and 171.31 is: 256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.06 : 834.11 = 171.31 : x
  2. Step 2: Convert to fraction form
    556.06/834.11 = 171.31/x
  3. Step 3: Cross multiply
    556.06x = 834.11 × 171.31
  4. Step 4: Simplify right side
    556.06x = 142,891.38
  5. Step 5: Solve for x
    x = 142,891.38/556.06
  6. Step 6: Final answer
    x = 256.97

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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.