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Finding the Fourth Proportional to 175.52, 240.61 and 172.42

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Solution

The fourth proportional to 175.52, 240.61 and 172.42 is: 236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.52 : 240.61 = 172.42 : x
  2. Step 2: Convert to fraction form
    175.52/240.61 = 172.42/x
  3. Step 3: Cross multiply
    175.52x = 240.61 × 172.42
  4. Step 4: Simplify right side
    175.52x = 41,485.98
  5. Step 5: Solve for x
    x = 41,485.98/175.52
  6. Step 6: Final answer
    x = 236.36

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.