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Finding the Fourth Proportional to 175.47, 241.88 and 140.64

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Solution

The fourth proportional to 175.47, 241.88 and 140.64 is: 193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.47 : 241.88 = 140.64 : x
  2. Step 2: Convert to fraction form
    175.47/241.88 = 140.64/x
  3. Step 3: Cross multiply
    175.47x = 241.88 × 140.64
  4. Step 4: Simplify right side
    175.47x = 34,017.30
  5. Step 5: Solve for x
    x = 34,017.30/175.47
  6. Step 6: Final answer
    x = 193.86

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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.