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Finding the Fourth Proportional to 251.82, 347.57 and 169.16

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Solution

The fourth proportional to 251.82, 347.57 and 169.16 is: 233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.82 : 347.57 = 169.16 : x
  2. Step 2: Convert to fraction form
    251.82/347.57 = 169.16/x
  3. Step 3: Cross multiply
    251.82x = 347.57 × 169.16
  4. Step 4: Simplify right side
    251.82x = 58,792.36
  5. Step 5: Solve for x
    x = 58,792.36/251.82
  6. Step 6: Final answer
    x = 233.47

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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.