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Finding the Fourth Proportional to 556.03, 834.17 and 171.25

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Solution

The fourth proportional to 556.03, 834.17 and 171.25 is: 256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.03 : 834.17 = 171.25 : x
  2. Step 2: Convert to fraction form
    556.03/834.17 = 171.25/x
  3. Step 3: Cross multiply
    556.03x = 834.17 × 171.25
  4. Step 4: Simplify right side
    556.03x = 142,851.61
  5. Step 5: Solve for x
    x = 142,851.61/556.03
  6. Step 6: Final answer
    x = 256.91

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Similar ratio
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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.