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Finding the Fourth Proportional to 175.56, 241.56 and 153.78

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Solution

The fourth proportional to 175.56, 241.56 and 153.78 is: 211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.56 : 241.56 = 153.78 : x
  2. Step 2: Convert to fraction form
    175.56/241.56 = 153.78/x
  3. Step 3: Cross multiply
    175.56x = 241.56 × 153.78
  4. Step 4: Simplify right side
    175.56x = 37,147.10
  5. Step 5: Solve for x
    x = 37,147.10/175.56
  6. Step 6: Final answer
    x = 211.59

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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.