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Finding the Fourth Proportional to 175.32, 240.48 and 172.31

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Solution

The fourth proportional to 175.32, 240.48 and 172.31 is: 236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.32 : 240.48 = 172.31 : x
  2. Step 2: Convert to fraction form
    175.32/240.48 = 172.31/x
  3. Step 3: Cross multiply
    175.32x = 240.48 × 172.31
  4. Step 4: Simplify right side
    175.32x = 41,435.91
  5. Step 5: Solve for x
    x = 41,435.91/175.32
  6. Step 6: Final answer
    x = 236.34

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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.